Answer:
A. Absence of bill of rights is the correct answer.
Explanation:
The Anti Federalists were the politicians who were against the US constitution that was adopted in 1787. They considered the constitution to be giving too much power to the central government and they were afraid to single national government. Patrick Henry, James Winthrop and George Mason were some of the famous Anti federalists. They were afraid because the states were given more power in Articles of Confederation and Perpetual Union while it wasn't so in the new constitution. Their influence led to the passage of bill of rights.