Why is it so difficult to pass a constitutional amendment in the US? Choose three correct answers.A proposed amendment must be ratified by three-fourths of state legislatures or state conventions.A proposed amendment must be ratified by the president or a public referendum.A proposed amendment must be ratified by three-fourths of state legislatures or the Supreme Court.An amendment must be proposed by two-thirds of Congress.An amendment must be proposed by two-thirds of states at a convention.

An amendment can be proposed either by a two-thirds vote in both houses of Congress or through a convention called after two-thirds of state legislatures apply for one. After it is proposed, it must be ratified by three-fourths of the states, through their legislatures or state conventions. These demanding thresholds are why amendments are difficult to pass. Choice E describes the convention route, though technically the states call the convention and the convention proposes the amendment.

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