Which of the Following Statements About Debriefing Is TRUE

Which of the following statements about debriefing is TRUE?

A) Debriefing participants is required in all forms of research.
B) If the IRB approves, a debriefing that might cause harm to participants can be omitted.
C) All debriefings must take place in person; written or other impersonal forms of debriefing are not permitted.
D) Debriefing is only required for research that uses deception.