D.it refers to God's will and power
the spider catching a fly represent Satan and his schemes to entrap men in sin, however God can easily break Satan's Web and save man.
I believe that the metaphysical poets introduced all of those changes and were reacting against the flowery language used in Elizabethan lyrics.
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.
