Question

What does the passage mainly discuss?

• A. Cardiology
• B. Diet and stress as factors in heart attacks
• C. Seasonal and temporal patterns of heart attacks
• D. Risk factors in heart attacks

Answer 1

Answer: (D)

Risk factors in heart attacks

Generally, the first sentence of a paragraph becomes the topic sentence or the sentence that summarizes the entire theme of the paragraph. In the given paragraph, the first sentence- "...researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks." - introduces the theme of the passage. As noted in the sentence, the paragraph mainly discusses the risk factors in heart attacks. Thus, option D is the correct answer. The other other choices do not fit the context.