Research by Kulik and Mahler Found That Hospital Patients Awaiting

Research by Kulik and Mahler found that hospital patients awaiting open-heart surgery expressed a stronger preference to have a roommate who:

A) was also about to undergo open-heart surgery as well.
B) had already gone though open-heart surgery.
C) was about to undergo a different,more difficult procedure.
D) had already gone though a different,more difficult procedure.