Just Before an Election, a Political Candidate Wants to Create

Just before an election, a political candidate wants to create a positive image that will persuade voters who are still undecided to vote for him. He should:

A) give a lengthy address on TV making logical arguments for his positions
B) run ads with endorsements from a wide array of celebrities
C) debate his opponent on the night before the election
D) take ads in the paper showing his detailed positions on the issues