Powers that are shared between the national and state governments and can be used at the same time are known as

enumerated powers

concurrent powers

reserved powers

implied powers

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

c is the correct answer for this question.

i guess so you did not explain the answer clearly so i can't