Amendment x the powers not delegated to the united states by the constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people. what is the main idea of this amendment from the bill of rights? a. the rights listed in the constitution must be followed by every state. b. states have the right to make laws not identified in the constitution. c. states are forbidden from making their own rights to govern citizens. d. the people have the power to overturn any laws they don't agree with.