Which of the Following Statements Is Not Correct About the U.S.monetary

Which of the following statements is not correct about the U.S.monetary system?

A) The federal government did not print paper money until the Civil War.
B) Between 1789 and 1865,paper money was issued by hundreds of state-chartered banks.
C) Credit cards are the most common form of money today.
D) Early in U.S.history,the money supply consisted of items such as tobacco and bullets.