Who holds concurrent powers? a. the federal government
b. the state governments
c. both the federal government and state governments
d individual citizens

Concurrent powers are powers shared by the federal government and the states.

i would say that the politicial parties from state to state varies.

i am not 100% positive but i think it is is b. both are non-partisan jobs

i am pretty sure that members of congress have term limits, can be impeached, and are nominated through direct popular vote.