1 is A, 2 is C, and 3 is B
The correct answer is option B "Humans and nature live in a precarious balance". Alan H. Weisman is an American author widely known for his work as journalist. One of his most critically acclaimed works is "The World Without Us", a book where a scenario of the Earth without humans is described. One of the themes in Weisman's works are the balance that human and nature have, he would likely agree that this is a precarious balance.
Yes that's what I would say
