The rags-to-riches myth in American history . supported the creation of welfare programs diminished the status of the wealthy served to give people hope exposed the corruption among the industrial elite

Correct

served to give people hope

Explanation:

In America, there is history of stories about some American people who were once poor but became wealthy through series of their endeavor such as business, trade or inheritance. This stories was told in-order to encourage Americans about their ability to succeed in whatever endeavor which they set their heart on. For example, story of Rockerfeller.