<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be that growing incomes that culminated in the 1920s led to people having more money to spend on entertainment. </span></span>
In the story of Oedipus he was given a prophecy saying that he would kill his father and marry his mother. And in the end of the story he does end up killing his father and marrying his mother. This is foreshadowing, a clue or event that has happened before that tells of an event that will happen in the future.
President Roosevelt used the radio to address the public because it was ability to wide spread the news, without having some people hearing later on. It was more known at 1 time.
Hope this helps!
President Hoover basically did nothing. He was a "do nothing" president. He believed that Americans got themselves into their financial mess and that they should get themselves out of it. He didn't want the federal government to intervene with citizens affairs. This was called rugged individualism.