A Presidential Candidate's Acceptance Speech at the Party Convention Greatly

A presidential candidate's acceptance speech at the party convention greatly influences many voters' views on the candidate.Which of the following people was most likely to have a more favorable opinion of then Senator Obama after his speech at the 2008 Democratic National Convention?

A) Zora, who had been an Obama supporter since he announced his candidacy for president
B) Yancey, who is a fervent Democrat but does not know much about Obama
C) Xenia, who only became a Obama supporter after Hillary Clinton dropped out of the presidential race
D) Will, who was a McCain supporter but intensely disliked his negative campaign