How his house changed while he was gone, how some people were not as loyal as he thought they were
I think it is B
Explanation:
I could be wrong so no hating
The conch comes to symbolize, c) order and civilization.
Water is a compund of 1 hydrogen atom and 2 oxygen atoms. water was just the name given to it.
If you read each of these, or speak them, there is only one that suits the sentence correctly.
Go with the third one. Couldn't seems to fit pretty well there.