Answer: a. They educate undecided citizens about the candidates.
Explanation: Undecided citizens who plan to vote in upcoming elections tend to be swayed to dislike certain candidates by negative political attack ads. This is due to their lack of stance/knowledge on the candidate, thus making it easier to manipulate their perception.
One of the reasons why so many Americans were in favor of going to war with Mexico was because "They believed it was <span>necessary in order to gain more territory," since it was clear that Mexico was not going to sell the land voluntarily. </span>
