Question

after congress has approved a proposed amendment to the constitution, what then must take place before that amendment becomes law?
the president must approve it.
three - quarters of the states must approve it.
the supreme court must approve it.
half of the states must approve it.

Explanation:

In the United States, after Congress approves a proposed amendment to the Constitution, three - quarters of the states must ratify it for it to become law. This is part of the amendment process outlined in the Constitution. The president's approval is not required for a constitutional amendment, nor does the Supreme Court approve it in this context. A simple majority of states (half) is not sufficient; it requires three - quarters.

Answer:

B. Three - quarters of the states must approve it.