How were state constitutions helpful to the writing of the U.S. Constitution? If answered first, and correctly, will mark BRAINLIEST!!!!
A.
Most states had learned that having a strong central government was a mistake.
B.
The state constitutions contained no guaranteed rights, so the authors of the U.S. Constitution left them out.
C.
Small and large states readily agreed on how to set up a national legislative body.
D.
The authors of the state constitutions had learned lessons that were useful in writing a new U.S. Constitution.