Which of the Following Factors Helped Stall the Development of the New

Which of the following factors helped stall the development of the New Deal in the late 1930s?

A) conservative southern Democrats joining with Republicans to block proposed New Deal programs
B) the lack of political influence of African Americans and union members in the North
C) the belief that Roosevelt had failed to exercise enough power as president and relied on the states
D) the surprise attack on Pearl Harbor led by the Japanese that propelled the United States into war
E) the onset of a natural disaster that came to be known as the Dust Bowl