I don’t know what kind of rhyme you are going for but it sounds good!!
You are right. the answer is D
According to Barry Lopez, the fundamental topic of nature writing concerns our lack of connection to a sense of place and the natural world.
It's A.
Step-by-step explanation:
B is more for a essay if you were studying something or someone.
C realy has nothing to do with it.
D that is one of the things but it wouldn't be a full explanation of the essay.