Answer: B
Step-by-step explanation:
In an open-list proportional representation system, voters choose an individual candidate from a party list. This means that voters have the option to vote for a specific candidate within a political party rather than just voting for the party as a whole. The number of candidates elected from each party is determined by the total number of votes received by the party, and then by the number of votes received by individual candidates within the party list. Therefore, option (b) "an individual candidate" is the correct answer.