An amendment is added to the U.S. Constitution after which of these events?

Question

Responses
A the President signs itthe President signs it
B the 1/2 of Congress ratifies itthe 1/2 of Congress ratifies it
C the 3/4 of the states ratify itthe 3/4 of the states ratify it
D the American people vote to added it

Answer 1

C the 3/4 of the states ratify it