Suppose That Two Political Candidates-Candidate a and Candidate B-Run a Series

Suppose that 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) both candidates are likely to be rated more negatively than they were before
C) people are more likely to say they will vote
D) people are more likely to take the election seriously and follow it closely