Which of the following statements best explains why the addition of a bill of rights was necessary to ensure ratification of the Constitution?

A.
The Anti-Federalists were fearful of a too powerful national government.

B.
The Anti-Federalists were distrustful of state governments.

C.
The Federalists were fearful of a too powerful national government.

D.
The Federalists were distrustful of a national bill of rights being used by states.

A. The Anti-Federalists were fearful of a too powerful national government.

The best explanation for why the addition of a bill of rights was necessary to ensure ratification of the Constitution is option A: The Anti-Federalists were fearful of a too powerful national government.