Recall That Participants in a Research Experiment Presented in the Text

Recall that participants in a research experiment presented in the text were insulted by an alleged medical technician and that those who were allowed to vent their hostility to the technician's supervisor subsequently felt even greater dislike and hostility towards the technician than did those who did not get a chance to complain.This increase in dislike after complaining is most likely due to

A) dissonance reduction processes.
B) the anchoring/adjustment heuristic.
C) the frustration-aggression effect.
D) social learning theory.