Which of the following accurately explains a difference between caucuses and primaries?
A) Caucuses have lower participation rates than primaries, but both play a role in nominating candidates
B) Both caucuses and primaries involve voters expressing their support for their preferred candidates in a public setting
C) Caucuses are used during the general election, while primaries are used in the nomination process
D) Primaries are used in presidential election while caucuses are used in senate elections