A citizen who goes to the polls on election day and selects candidates on a ballot is a?

A citizen who goes to the polls on election day and selects candidates on a ballot is a Voter

Explanation:

Election is a democratic freedom given to a citizen to select his or her governing authority. During Election Day the voter casts his vote in the ballot. The authorities are elected based on the number of votes they obtain. Hence to vote is the golden opportunity given to each voter as each and every vote is important and of great importance to select the best head.

Any citizen of that particular country with sound mind is eligible to vote. When several candidates stand for election it is the freedom given to the voter to elect the best leader.