9. The passage makes clear that animals have disappeared on Earth due to the:
Your Answer is
Correct Answer is D
Explanation
Detailed questions, examine the causal relationship, locate lines 57-58, "Humans only let those animal species that are beneficial to them survive, and the rest are almost extinct."
Item D : "Human's selection of useful animals", in line with the positioning information.
ABC item: It does not meet the positioning information, and it is not mentioned in the article.