I think Nick’s narration make us feel that Gastby is an unreliable character
I think its B? judging the quotes he has stated.
1) When did she come home yesterday
2)Do you go to school on Saturday
3)Perhaps tomorrow it won't rain
4)Did they read that book
5)Has he got a new car
6)Will you buy her a present
In easier words it means the supernatural cannot be evil nor it cannot be good
When they're quoting someone, or using information from a specific place.