What is one difference between closed and open primary elections? A. Closed primaries promote party unity, while open primaries
encourage opinions from a range of voters.

B. Closed primaries forbid registered party members from
participating, while open primaries allow it.

C. Closed primaries are used mainly by the Democratic Party, while
open primaries are used mainly by the Republican Party

D. Closed primaries encourage voter participation, while open
primaries discourage it.