The lead researcher fails to adequately separate his psychological duties from his experimental role in the Stanford Prison Experiment.
Option B is correct.
The Stanford Prison experiment was constituted to examine the effects of situational quantities on the reaction and behavior of participants in a two-week technique of a lockup environment.
The Stanford Prison Experiment is tried to decide the functions that individuals carry in their daily lives and problems.
The researcher receives sufficient approval from the university institutional review board, but at last, he failed to sufficiently distinguish his mental duties from his observed role.
Therefore, option B is correct.
Learn more about the Stanford Prison experiment, refer to:
https://brainly.com/question/5014785