Final answer:
This is an example of cumulative voting where voters can distribute their votes among multiple candidates, casting more than one vote for a single candidate if desired.
Step-by-step explanation:
If there are six seats up for election and a voter is allowed to cast up to six votes, this is an example of c) Cumulative Voting. Cumulative voting is a voting method where voters can distribute their votes among multiple candidates, casting more than one vote for a single candidate if desired. In this case, the voter can cast up to six votes for the candidates running for the six available seats.