Many state constitutions were written and enacted in the same time period as the u. s. constitution. which was a main reason state representatives were concerned about what would be in the u. s. constitution? a. they wanted to make sure that slavery stayed legal in their state. b. they wanted their constitution to be the same as the u. s. constitution. c. the rules of federal government could force them to change their laws. d. the u. s. constitution would have higher authority than state constitutions.