One main difference between the united states constitution and state constitutions is that state
constitution
a. are much longer.
b. can't be amended.
c. don't have bills of rights.
d. don't provide for a legislature.

The answer is A.

The main difference between those constitution is that the state constitutions is much longer.

it sounds childish but it's true.

- State constitution have to be amended over and over
- state constitutions do have bill of right
- And all states provide legislature for their constitutions