It is difficult to change the Constitution of the United States. What evidence from the passage supports this conclusion?

A) Two thirds of both the Senate and the House must vote for the change, then three quarters of the states must approve it.

B) The 13th Amendment to the Constitution states that, “Congress shall have power to enforce this article by appropriate legislation.”

C) A change to the United States Constitution is called a Constitutional Amendment. The 13th Amendment was the 13th change made to the Constitution.

D)Lincoln believed he had the legal right, given to the president by the Constitution in times of war, to take action necessary to defeat the rebels.