Answer:
The correct answer is D. Role playing.
Step-by-step explanation:
Role playing refers to assuming a certain role and creating a scenario from it, different from reality.
Dissociative Personality Disorder (DID) involves an individual having at least 2 different personality states and a mind gap in between the changes between these.
In this case, the college students were role playing murderers and they showed a second personality during the experience. Relating to this particular example, it can be deduced that the dissociative identity disorder may involve a certain role play, since the students displayed a certain second personality during hypnosis.