The caste system of ancient india did which of the following?

answer:

c. it limited social mobility

explanation:

in ancient india, it was merely impossible to move up the caste system. if you were that social class, you stayed that social class.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.