Meaning: 'Fundamental' means basic or essential, indicating that the reasons are core to the argument.

Wrong options:

• clear: 'Clear' is an adjective that means easy to perceive or understand, but it does not convey the essential nature of the reasons.
• derive: 'Derive' is a verb that means to obtain something from a specified source, which does not fit as it does not describe the nature of the reasons.
• facilitate: 'Facilitate' is a verb meaning to make an action or process easier, which does not appropriately describe the reasons in this context.
• wealthy: 'Wealthy' is an adjective that describes someone who has a lot of money, but it does not relate to the nature of the reasons being discussed.
• endless: 'Endless' is an adjective that means having no end, which does not fit as it does not describe the reasons themselves.
• inevitably: 'Inevitably' is an adverb that means unavoidably, which does not fit as it does not describe the reasons.

Correct answer: wealthy

Explanation: The term 'wealthy' is an adjective that describes a person who has a lot of money. It fits grammatically as it describes the subject 'we' and contextually aligns with the discussion about comparing wealth among peers.

Meaning: 'Wealthy' refers to having a great deal of money or assets.

Wrong options:

• fundamental: 'Fundamental' is an adjective that describes essential reasons, but it does not fit as it does not describe a state of being.
• clear: 'Clear' is an adjective that means easy to understand, which does not fit as it does not describe a state of wealth.
• derive: 'Derive' is a verb that does not fit grammatically or contextually as it does not describe a state of being wealthy.
• facilitate: 'Facilitate' is a verb that means to make something easier, which does not fit as it does not describe a state of wealth.
• endless: 'Endless' is an adjective that means having no end, which does not fit as it does not describe a state of wealth.
• inevitably: 'Inevitably' is an adverb that means unavoidably, which does not fit as it does not describe a state of wealth.

Correct answer: attainment

Explanation: The word 'attainment' is a noun that refers to the action of achieving a goal or reaching a level of success. It fits grammatically as it serves as the subject of the prepositional phrase 'on attainment of such achievements' and contextually aligns with the discussion about achieving goals.

Meaning: 'Attainment' means the act of achieving or reaching something, particularly a goal.

Wrong options:

• fundamental: 'Fundamental' is an adjective that describes essential reasons, which does not fit as it does not describe an action or process.
• clear: 'Clear' is an adjective that means easy to perceive or understand, which does not fit as it does not describe an achievement.
• derive: 'Derive' is a verb that does not fit grammatically or contextually as it does not relate to achieving goals.
• facilitate: 'Facilitate' is a verb that means to make an action easier, which does not fit as it does not describe the process of achieving something.
• wealthy: 'Wealthy' is an adjective that describes a state of having money, which does not fit as it does not relate to the act of achieving goals.
• endless: 'Endless' is an adjective that means having no end, which does not fit as it does not describe the process of achieving something.

Correct answer: endless

Explanation: The term 'endless' is an adjective that describes a cycle that has no end. It fits grammatically as it modifies 'cycle' and contextually emphasizes the perpetual nature of the cycle of setting new goals.

Meaning: 'Endless' means having no end or limit, indicating that the cycle continues indefinitely.

Wrong options:

• fundamental: 'Fundamental' is an adjective that describes essential reasons, which does not fit as it does not describe the nature of the cycle.
• clear: 'Clear' is an adjective that means easy to understand, which does not fit as it does not describe the cycle's nature.
• derive: 'Derive' is a verb that does not fit grammatically or contextually as it does not relate to the nature of a cycle.
• facilitate: 'Facilitate' is a verb that means to make something easier, which does not fit as it does not describe the cycle.
• wealthy: 'Wealthy' is an adjective that describes a state of having money, which does not fit as it does not relate to the cycle.
• inevitably: 'Inevitably' is an adverb that means unavoidably, which does not fit as it does not describe the cycle.

Correct answer: inevitably

Explanation: The word 'inevitably' is an adverb that indicates that something is certain to happen. It fits grammatically as it modifies the verb 'will bring' and contextually emphasizes the certainty of the outcome regarding happiness.

Meaning: 'Inevitably' means unavoidably, indicating that the methods discussed will certainly not lead to happiness.

Wrong options:

• fundamental: 'Fundamental' is an adjective that describes essential reasons, which does not fit as it does not describe the manner of the outcome.
• clear: 'Clear' is an adjective that means easy to understand, which does not fit as it does not describe the outcome.
• derive: 'Derive' is a verb that does not fit grammatically or contextually as it does not relate to the certainty of the outcome.
• facilitate: 'Facilitate' is a verb that means to make something easier, which does not fit as it does not describe the outcome.
• wealthy: 'Wealthy' is an adjective that describes a state of having money, which does not fit as it does not relate to the outcome.
• endless: 'Endless' is an adjective that means having no end, which does not fit as it does not describe the certainty of the outcome.