One way to change someone’s attitude is to get that person to give a speech arguing against his or her actual viewpoint. this strategy can lead to attitude change through cognitive dissonance as long as is/are present. (a) peripheral cues to persuasion (b) a motivated audience that feels a sense of personal relevance (c) insufficient justification for making the speech(d) two-sided arguments

Option D

Explanation:

Greetings,

A two-sided argument can support your argument and the opponent's argument, this can help the opponent to be prone to your ideas. A understanding can be created and the opponent may agree with you at some point.

Agreeing with the opponent will have more chances of approval of YOUR options by the opponent.

Thank you.

answer; i believe that the correct answer is ; unified

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.