"I wandered lonely as a cloud" is comparing a cloud directing to a persons feeling. This would be a simile.
Answer: The zoo keeps the the geese's habitat clean.
Explanation: they are taking about their habitat so it can’t be ( geese’s) like ownership. And the correct way is geese’s not geeses’
I would say D is more appropriate. It's possible she has interest, and that is the root of her observations, but adoration is clear by her vivid, positive description.
