A Voter in New York Goes to the Polls

A voter in New York goes to the polls. She is registered as an Independent but wishes to vote in the Republican primary. She is told she cannot vote in the Republican primary because she is not a registered member of the party. New York must be using a(n)

A) blanket primary system.
B) open primary system.
C) closed primary system.
D) nonpartisan primary system.
E) party caucus system.