What was the greatest concern of the opponents to the Constitution?

A. taxation would be eliminated

B. selection of George Washington as president

C. replacement of the Articles of Confederation

D. giving up state power to form a stronger Union

Replacement of the articles of confederation

D) giving up state power to form a stronger Union

Anti-Federalists were afraid that the central government would become too powerful. They thought individual rights would be undermined and so would the power of individual states. So later the Bill of Rights was added to reassure people.