All Studies Must Be Reviewed by an Institutional Scientific Review

All studies must be reviewed by an institutional scientific review board. Which of the following guidelines is true?

A) Harm to participants can only be minimal if the goal is to advance treatments for medical science.
B) Participants must consent to participate, and once they do, they must complete the study.
C) Participants should be given the list of each other's contact information for support.
D) If there is a need for deception, participants must be debriefed after the study.
E) Informed consent is not required if study is conducted online.