After Congress has approved a proposed amendment to the Constitution, what then must take place before that amendment becomes law? A. The president must approve it.
B. Three-quarters of the states must approve it.
C. The Supreme Court must approve it.
D. Half of the states must approve it.
The correct answer is B. Three-quarters of the states must approve it.
After Congress approves a proposed amendment to the Constitution, it must be ratified by three-quarters (or 38 out of 50) of the state legislatures or by conventions in three-quarters of the states before it becomes law. This ensures a broad consensus across the country. The president does not play a role in this process, and the Supreme Court does not have to approve constitutional amendments.