Political advertisements are considered most effective among voters.

The correct answer for the given statement above would be it is undecided. It is not only politician advertisements that are considered to be the most effective among voters because it may depend on every voter. Some may look at the achievements and accomplishments, some may be affected by the downfalls they had during their term, and many other considerations. 

Your answer is a demonstrate dispositional attributions because when you go to a job interview you would want to look smart,official,and not a slaker people dress to impress so the person who's hiring doesn't make a mistake giving you the job.your answer is a.