Two Political Candidates-Candidate a and Candidate B-Run a Series of Negative

Two political candidates-Candidate A and Candidate B-run a series of negative advertisements about one another. Research suggests that ____.

A) both candidates are likely to be rated more positively than they were before
B) people are less likely to say they will vote
C) people are more likely to say they will vote
D) people are more likely to pay close attention to the election