Roosevelt supported the repeal of prohibition because a. he thought it was unconstitutional.
b. he believed the problem of drunkenness could be solved by restricting alcohol content to 3.2 percent by weight.
c. he thought that it afforded the opportunity to raise needed federal revenue and provide jobs.
d. he needed support from the repeal movement to gain reelection.
e. drys - those who opposed alcohol - were an increasingly small segment of the population.

c. he thought that it afforded the opportunity to raise needed federal revenue and provide jobs.

Explanation:

Most government look at ways to improve the economy through various ways, and most of those ways is by providing jobs and making the environment sustainable for developments that would come in, this in turn also provides job, when jobs are available it helps the citizens and the economy.

This was why Roosevelt supported the prohibition because he thought that it afforded the opportunity to raise needed federal revenue and provide jobs.

well considering i can't see the graph, it's probably prices