in the upcoming election, voters can choose, abe or barb for president, carlos, darla, or eve for vice-president, and fred, gina, or hal for secretary.
(A) Draw a tree demonstrating the possible ways a voter might complete his or her ballot.
(b) How many different ways can the ballot be completed if the voter must cast a vote for each office?
(C) How many ways can the ballot be completed if the voter may choose not to vote in some (or all) of the elections?