Answer:
The process for amending the United States Constitution is outlined in Article V. To propose an amendment, two-thirds of both houses of Congress must vote to propose it. However, for an amendment to be ratified and become part of the Constitution, it must be approved by three-fourths (75%) of the state legislatures or by conventions in three-fourths of the states.
Looking at the provided answer choices:
A. 12 1/2 (This is less than the required 75%, so it's not correct.)
B. 23 2/3 (This is also less than the required 75%.)
C. 34 3/4 (This is exactly 75%, which is the minimum required for ratification.)
D. 45 (This is more than the required 75%, so it's definitely enough.)
Therefore, the correct answer is C. 34 3/4.