Felons and ex-felons, and new immigrants who are not yet citizens, are included in the

Felons and ex-felons, and new immigrants who are not yet citizens, are included in the voting-age population. In approximating voter turnout, the voting age population for a political unit is regularly used as the denominator for the amount of individuals eligible to vote in a given appointment which is this technique has been shown to drop in accuracy when a larger proportion of the voting-age population is unqualified to vote.

Ithink it would be choices a and b. hope this !