In a three-way race for governor, Mr. Kwan received forty-two percent of the vote,

Mr. Nelson received thirty-seven percent of the vote, and Mrs. Devlin received thirty-one percent. Which of these occurs under a two-round system?
a. Mr. Kwan wins the election.
b. Voters return to the polls to decide between Mr. Kwan and Mr. Nelson.
c. The second preference votes are counted for Mr. Kwan and Mr. Nelson.
d. Mr. Kwan becomes the governor and Mr. Nelson becomes the lieutenant governor.

Correct Answer: b