Answer: C. conservative state politicians resisted federal involvement in state affairs
Step-by-step explanation:
States were more independent in the past than they are today especially before the post WWII federal administrations. They preferred that the Federal government stayed away from their issues and the Federal government usually did.
With the Great Depression devastating the U.S. economy however, a new approach was needed. The Federal government under FDR needed to work in states more through the New Deal to save the country.
States that cooperated with the Federal government saw some improvement but states like Oklahoma that wanted to keep their independence, did not see much of that improvement.