Following Milgram's Experiment in Which Participants Were Led to Believe

Following Milgram's experiment in which participants were led to believe they had delivered dangerous electric shocks to another, he found that less than 2% had any negative feelings about the experience. This very low rate of negative feelings indicates

A) that Milgram's debriefing was very effective at desensitizing.
B) that Milgram's debriefing was very effective at dehoaxing.
C) that Milgram's participants did not really believe they were shocking anyone.
D) that Milgram's participants were not concerned about harming others.