Question

How does the potato crop failure in Ireland demonstrate the relationship between humans and the environment?

Answer 1

Due to the crop failure, many people died of starvation during this time.  So your answer is B.

Answer 2

B; As far as the relation between humans and the environment, it is obvious how much they relied on it. Not only as a food source, but for economic growth and sustainability as well. The other answers make valid points but in the context of this question, the only one that even mentions the relation is B.