Meaning: 'Determination' refers to the firmness of purpose or resoluteness in achieving a goal.

Wrong options:

• making: 'Making' is a gerund that does not fit the context of describing a quality necessary for success.
• strong: 'Strong' is an adjective that does not appropriately describe a quality related to achieving success in this context.
• odds: 'Odds' is a noun that refers to the likelihood of something happening, which does not fit as a quality needed for success.
• efforts: 'Efforts' is a noun that refers to the exertion of physical or mental energy, but it does not convey the quality of resolve needed in this context.
• lucky: 'Lucky' is an adjective that describes a chance occurrence, which does not fit the context of personal qualities leading to success.
• trial: 'Trial' is a noun that refers to a test or experiment, which does not convey the necessary quality for achieving success.

Correct answer: lucky

Explanation: The term 'lucky' is an adjective that describes someone who has good fortune. It fits grammatically and contextually as it describes the belief of a pessimistic person regarding the nature of success.

Meaning: 'Lucky' refers to having good fortune or favorable circumstances that are not a result of one's own actions.

Wrong options:

• making: 'Making' is a gerund that does not fit as it does not describe a state of being related to fortune or success.
• strong: 'Strong' is an adjective that does not relate to luck or fortune in this context.
• odds: 'Odds' is a noun that refers to the probability of something occurring, which does not fit as a descriptor of a person's fortune.
• determination: 'Determination' is a noun that describes a quality of resolve, which does not fit the context of luck.
• efforts: 'Efforts' is a noun that refers to the exertion of energy, which does not describe a state of being fortunate.
• trial: 'Trial' is a noun that refers to a test or challenge, which does not convey the idea of being fortunate.

Correct answer: making

Explanation: The word 'making' serves as a gerund that indicates the action of producing or creating efforts. It fits grammatically as it follows the preposition 'up' and aligns contextually with the idea of continuing to put in effort towards success.

Meaning: 'Making' refers to the act of producing or creating something, in this case, efforts towards achieving success.

Wrong options:

• strong: 'Strong' is an adjective that does not fit grammatically or contextually as it does not indicate an action related to efforts.
• odds: 'Odds' is a noun that does not fit in the context of making efforts, as it refers to probability rather than an action.
• determination: 'Determination' is a noun that does not fit grammatically in this context as it does not indicate an action.
• lucky: 'Lucky' is an adjective that does not fit as it does not relate to the action of making efforts.
• efforts: 'Efforts' is a noun that does not fit grammatically as it does not indicate an action and is redundant in this context.
• trial: 'Trial' is a noun that does not convey the action of making efforts.

Correct answer: odds

Explanation: The word 'odds' is a noun that refers to the likelihood or probability of something happening. It fits grammatically and contextually as it describes the challenges one faces when pursuing success.

Meaning: 'Odds' refers to the chances or probabilities against which one must strive to achieve success.

Wrong options:

• making: 'Making' is a gerund that does not fit as it does not relate to the concept of challenges or probabilities in this context.
• strong: 'Strong' is an adjective that does not fit as it does not convey the idea of challenges or probabilities.
• determination: 'Determination' is a noun that does not fit in this context as it does not relate to the concept of odds or challenges.
• lucky: 'Lucky' is an adjective that does not fit as it does not relate to the concept of odds or challenges in achieving success.
• efforts: 'Efforts' is a noun that does not fit as it does not convey the idea of challenges or probabilities.
• trial: 'Trial' is a noun that refers to a test or challenge but does not fit as it does not convey the idea of odds.