Which ethical concept is most directly relevant to Solomon Asch's study on conformity, and why?
A) Coercion, because Asch's study was criticized since participants did not take part voluntarily.
B) Confidentiality, because Asch disseminated the results of his study after the study was completed.
C) Informed consent, because the participants did not know the true nature of the experiment, which made it unethical.
D) Deception, because Asch had to deceive his participants about the true nature of the study in order to test conformity.
E) Deception, because Asch had to deceive his participants in order to get them to play out the role of the prisoner or guard successfully.