Is Having the right to vote the same as being represented in government (House of Reps, Senate)?

Not necessarily, the Census counts population for purposes of determining the number of Representatives. It doesn't matter if people are registered or eligible to vote they are still counted and represented. All 50 states get 2 Senators regardless of population size.

Ibelieve it is c

Ifound this on google “separation of powers. a fundamental principle of the united states government, whereby powers and responsibilities are divided among the legislative branch, executive branch, and judicial branch.” i hope this you for what your looking for