Answer:
Hoover took a hands-off approach, and Roosevelt did the opposite.
Explanation:
Herbert Hoover was under the impression that the stock market crash of 1929 was a simple market correction, that it would go away if everybody just acted like everything was normal, and that markets simply do these things from time to time. By the time Roosevelt took office in 1933, he understood that no quick solutions were to be had. He did start a lot of public works projects, like the Works Projects Administration (which gave a lot of people short-term employment teaching, painting post office murals, and cleaning up public lands) and the Tennessee Valley Authority (which put a lot of broke farmers to work putting a utilities infrastructure in place in parts of the South, putting the pieces of a post-agricultural economy in place).
He also instituted several "bank holidays" to discourage panic-driven depositors from taking all their money out of their banks. Austerity became the new normal in America and stayed that way until the US entered World War II.
He did this to put an end to slavery.
C. Relative Dating is your answer I think.
A. The Red Scare
Communists were associated with the color red because of the red flag of the Soviet Union -- thus the "Red Scare." One manifestation of the Red Scare was how people's privacy was invaded. Accusations about communists and communist sympathizers were aimed at all sorts of people. Many people in the Hollywood film industry were targeted during that time, for instance. But defenders of freedom (including film and television people) fought back against that. Those who aimed to protect the rights and liberties of each individual saw the Red Scare tactics as "witch hunts," where we suspect our neighbors of evil for no good reason.
Speaking of "witch hunts," the playwright Arthur Miller wrote a really powerful play in 1953, during the Cold War, which focused on the Salem witch trials. He was making the point that what was happening in the Red Scare (hunting for communists) was another manifestation of the witch-burning craze that had happened at a previous time in history.