Question 15. Which of the following best paraphrases the underlined sentence in paragraph 3? A. It is highly possible that the increasing ra...

Question 15. Which of the following best paraphrases the underlined sentence in paragraph 3?

A. It is highly possible that the increasing rate of heritability was caused by medical breakthroughs during the last century.

B. When external risks were reduced by medical progress, scientists began to calculate the true heritability rate more efficiently.

C. The increased effectiveness of modern medicine led to the genetic impact on lifespan becoming more obvious over time.

D. Improvements in public health meant that people were less likely to die from extrinsic causes compared to previous generations.