<span>A. To create new understanding</span>
It is an allusion The poem uses Christian imagery regarding the Apocalypse and Second Coming allegorically to describe the atmosphere of post-war Europe.
<span>The most prevelant rumor is that Gatsby got his money through bootlegging (illegal sale of alcohol), which he did through his ties to the mob. Daisy tells Tom at one point, that Gatsby owned a chain of drug stores, and that is how he got rich.</span>