Answer: c) Open
Explanation:
In an open primary , a voter is allowed to select ballot of one party among all the parties for casting the vote to the nominee of that party. Limitation of voting in any other party apart from the chosen party is present in this primary.
Janice is also a part of open primary in which she can opt a single nominee from the list of candidate to whom she wants to vote.
Other options are incorrect because in closed primary only allows registered individual with party to vote. Blanket primary is used for opting political party. Transparent primary is not a valid term in field of primary.
Thus, the correct option is option(c).