In Milgram's Famous Study on Obedience, When the Participants Wanted

In Milgram's famous study on obedience, when the participants wanted to stop shocking a victim, the researcher told them "The experiment requires that you continue." Today, this research probably would not be permitted because the APA's ethics code

A) forbids all deception.
B) supports the participant's right to withdraw from research.
C) forbids research using electrical shocks.
D) encourages research with animals rather than with human participants.