The main way constitutional amendments are proposed is by
a convention requested by a majority of state legislatures.
a convention requested by the three branches of government.
a vote of three-fourths of both chambers of congress.
a vote of two-thirds of both chambers of congress.

The correct option is A

Article Five of the Constitution of the United States describes the process by which the Constitution may be altered by the United States Congress or by a national convention that is assembled at the request of the legislatures of at least two thirds. of the various states.

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