What evidence supports the statement that franklin d. roosevelt was responsible for the greatest expansion of federal power in the 20th century?

a) his four terms in office and his legacy affecting u. s. politics for decades to come
eliminate
b) his involvement in planning for the post-war world at the yalta and teheran conferences
c) the rapid expansion of government programs under the new deal and mobilization for world war ii
d) the judiciary reorganization bill of 1937, which was designed to add new justices to the supreme court

C) the rapid expansion of government programs under the New Deal and mobilization for World War II.

Explanation:

This is the option that best addresses Franklin D. Roosevelt's expansion of federal power in the 20th century. The expansion of government programs under the New Deal is the first example because this expansion was done at the federal level. The federal government was able to gain significant access to areas that were usually considered jurisdiction of the state government. Moreover, mobilization for World War II similarly took place at the federal level with little impact from state and local governments.

answer; ///the correct answer is,by introducing a merit system of nobility.

what are the others?