Meaning: To 'seek' means to look for or try to obtain something.

Wrong options:

• attempt: The verb 'attempt' implies trying to do something but does not fit the context of looking for benefits, as it suggests a more active effort rather than a search.
• objectives: 'Objectives' is a noun that refers to goals or aims, which does not fit grammatically as it cannot replace the verb needed in this context.
• subtle: 'Subtle' is an adjective that describes something not obvious, which does not fit as it does not convey the action of searching for benefits.
• brittle: 'Brittle' is an adjective describing something that breaks easily, which does not fit as it does not relate to the action of seeking.
• supplements: 'Supplements' is a noun and cannot function as a verb in this context.

Correct answer: supplements

Explanation: The noun 'supplements' fits grammatically as it is plural and refers to additional sources of vitamin D that people may take. Contextually, it aligns with the idea of seeking out vitamin D in bottle form.

Meaning: 'Supplements' are products taken to add nutrients to the diet, in this case, vitamin D.

Wrong options:

• seek: 'Seek' is a verb and does not fit as a noun in this context, as the blank requires a noun to describe what people reach for.
• attempt: 'Attempt' is a verb that does not fit as it cannot serve as a noun in this context.
• objectives: 'Objectives' is a noun that refers to goals, which does not relate to the context of vitamin D and is not what people would reach for.
• subtle: 'Subtle' is an adjective that does not fit as it does not describe a noun and does not relate to vitamin D.
• brittle: 'Brittle' is an adjective that describes a quality and does not fit as a noun in this context.

Correct answer: maintain

Explanation: The verb 'maintain' fits grammatically as it is in the base form, which is appropriate after 'to.' Contextually, it aligns with the idea of keeping bones, teeth, and muscles healthy.

Meaning: To 'maintain' means to keep something in a particular state or condition.

Wrong options:

• seek: 'Seek' is a verb that does not fit as it does not relate to the action of keeping something healthy.
• attempt: 'Attempt' is a verb that implies trying but does not fit the context of ensuring health, as it does not convey the idea of ongoing care.
• objectives: 'Objectives' is a noun that refers to goals, which does not fit as it does not relate to the action of keeping bones and muscles healthy.
• subtle: 'Subtle' is an adjective that does not fit as it does not convey an action related to health maintenance.
• brittle: 'Brittle' is an adjective that describes a condition rather than an action, making it unsuitable for this context.

Correct answer: brittle

Explanation: The adjective 'brittle' fits grammatically as it describes the condition of bones, teeth, and muscles. Contextually, it aligns with the idea of these becoming weak and at risk of fracture.

Meaning: 'Brittle' means easily broken or fragile, often used to describe materials or conditions that lack strength.

Wrong options:

• seek: 'Seek' is a verb and does not fit as it does not describe a condition, which is required in this context.
• attempt: 'Attempt' is a verb that implies trying but does not fit as it does not describe a state of being.
• objectives: 'Objectives' is a noun that refers to goals, which does not fit as it does not relate to the condition of bones or muscles.
• subtle: 'Subtle' is an adjective that describes something not obvious, which does not fit as it does not convey the fragility of bones or muscles.
• supplements: 'Supplements' is a noun and does not fit as it does not describe a condition, making it unsuitable for this context.