I'm not 100% sure, but I would say C since the dog must have been warning the man that he would fall in the creek and have to leave if he started the fire.
C. It makes the French countryside seem like a magical, unspoiled place.
It would be part of the plot
Yes I think he actually sleeps there because throughout the whole poem he talks about how he loves this girl an how beautiful she is. Also by the other Edgar Allen Poe poems and stories I've read by him he seems to talk about death and is very literal about it.
