The major reason for the change on the number of bank failures between the early 1930s and 1937 is that by 1937

The choices for the above question are:
A. By 1937, most people were too poor to have any savings.
B. By 1937, the government had purchased and was operating the nation's banks.
C. By 1937, most Americans had transferred their savings to European banks.
D.By 1937, new banking laws had restored public confidence in the nation's banks.

The answer to your question is D. By 1937, new banking laws had restored public confidence in the nation's banks. I hope this is the answer that you were looking for. 

Iwould have to say c. the german americans.