After WW1 the U.S. went into a Great Depression and when Franklin D. Roosevelt's was elected, his first 100 days he created many agencies to end the Great Depression.Hope that helps. :)
"<span>C. The South had more miles of railroad track" is not accurate. Railroads were largely situation going from East to West. It is true that the North had a broader industrial base. </span>
He did not believe support the agency and voted a law that would keep it going.