The two methods for beginning the constitutional amendment process are; Choices A and D.
An amendment as the name implies is a ratification to the constitutional laws and may be proposed by a two-thirds vote of both Houses of Congress, or, in cases characterized by if two-thirds of the States request one, by a convention called for that purpose.
Subsequently, the amendment must then be ratified by three-fourths of the State legislatures, or three-fourths of conventions called in each State for ratification.
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