The correct answer is C. 1933 - 1945.
Explanation
In 1929 there was a world financial crisis that affected the great world powers like the United States. Therefore, the 1930s represented a challenge for President Franklin D. Rosevelt, who had to lead the economic reactivation after this crisis. For this reactivation, Franklin D. Roosevelt implemented the New Deal in which he included broad support for workers through laws such as The Fair Labor Standards Act of 19383 and the National Industrial Recovery Act of 1933. These policies contributed to the strengthening of unions and labor rights over the next decade. So the correct answer is C.
