Many states refused to ratify the Constitution unless which of the following actions were taken ?

Responses

it stipulated that the provisions of the Bill of Rights would apply to both the states and the national government.
it stipulated that the provisions of the Bill of Rights would apply to both the states and the national government.

Congress promised to ban the slave trade at once.
Congress promised to ban the slave trade at once.

it established a one-house legislature with each state equally represented.
it established a one-house legislature with each state equally represented.

a general listing of the rights of the people were added to it.

The correct response is: a general listing of the rights of the people were added to it.