An Open Caucus Is a Method Where

An open caucus is a method where

A) voters can show up on primary election day and cast their ballots without declaring party affiliation.
B) the party's leaders select the party's nominee for President.
C) the party's Congressional delegation selects the party's nominee for President.
D) party members are invited to a statewide meeting that votes for a slate of delegates to send to the national convention.
E) party members formally meet to provide input as to who their party should nominate for elective office.