I would say that the best one is C
Http://www.enotes.com/homework-help/dicuss-how-theme-money-cannot-buy-happiness-great-173429
Great notes that elaborate on your prompt with The Great Gatsby.
Yes, the boys are fearing the unknown rather then the beast.
Also No, because they are not sure if the beast exists. The beast is depicted differently to everyone.
Many authentic scientific discoveries were ignored.