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