Deception Is Justified in Psychological Research

Deception is justified in psychological research:

A) as long as the researcher debriefs with the participants.
B) when other alternatives may be available, but the study has benefits that clearly outweigh the costs of using deception.
C) when there are no other alternatives available and the study has benefits that clearly outweigh the costs of using deception.
D) only when there are no other alternatives available.