Janice is voting in a primary but does not announce an affiliation with either party. She is given ballots with each party's list of candidates; she chooses which ballot to use and is restricted to voting for only one party's nominees. In which type of primary is Janice participating?

Answer: Open primary

Explanation:

From the given case/scenario, we can state that Janice is participating in open primary, i. e. An open primary referred to as a primary election under which an individual voter can either choose not to have affiliation with a political party so as to vote or can tend to declare his/her partnership/relation with a political party at polls, i. e. at time of the primary irrespective of the fact that previously voter was in affiliation with some other political party.