Which of the Following Best Describes What Happens at the National

Which of the following best describes what happens at the national convention?

A) Upon arrival, most delegates are undecided as to whom they would like to see as the party's candidate.
B) The delegates from those states that had early primaries and caucuses are seated closest to the front of the convention center.
C) The presidential candidate is chosen by the party delegates.
D) Elites within the political parties are entrusted with making the determination of an appropriate candidate based upon electability.
E) It usually takes three ballots for the party to choose the presidential candidate.