Which of these methods of amending the U.S. Constitution was

Last updated: 7/29/2022

Which of these methods of amending the U.S. Constitution was used just once, to ratify the 21st Amendment, which ended prohibition of alcohol? It is proposed by a two-thirds vote in each house of Congress and approved by three-fourths of the state legislatures. It is proposed by a two-thirds vote in each house of Congress and approved by state conventions in three-quarters of the states. It is proposed by a convention called by two-thirds of the states and approved by a convention of three-quarters of the states.