14. Based on Source 3, a poor family living in the Appalachian Mountains North Carolina in 1934 would have benefited most from the
A. Great Migration.
B. Tennessee Valley Authority.
C. Wagner Act.
D. Truman Doctrine.

How does the supremacy clause of the u.s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u.s. constitution overrules each state constitution