Correct Answer: D

Rationale: Onset in this context means commencement, referring to the beginning of dementia symptoms.

Correct Answer: D

Rationale: The passage discusses the dangers of medical errors and provides specific examples of such errors but does not indicate that overmedication is the most common error. Therefore, since option D is not supported by the text, it is the correct choice for what is not mentioned.

Correct Answer: A

Rationale: The correct answer is A: 'Impart.' In the context of the passage, 'instill' means to impart important lessons about maintaining good health, staying fit, and keeping weight under control. This word choice is appropriate as it aligns with the idea of teaching and passing on knowledge. Choice B, 'Propagandize,' is incorrect as it implies spreading biased or misleading information, which is not the intended meaning in this context. Choice C, 'Demand,' is incorrect as it does not capture the concept of teaching or passing on lessons. Choice D, 'Create,' is also incorrect as it does not convey the idea of imparting knowledge or lessons, which is the central meaning of 'instill' in this context.

Correct Answer: B

Rationale: In this context, "conform" means to fit in with societal norms or standards, particularly those related to beauty. The passage describes how individuals may compromise their health to meet these cultural ideals, indicating that conformity relates to adhering to social expectations of beauty, making option B the correct interpretation.

Correct Answer: A

Rationale: The passage suggests that obesity and its related health issues contribute to lower life expectancy, implying obesity is detrimental to a long life.