According to a Study by Kulik and Mahler in 1987

According to a study by Kulik and Mahler in 1987, cardiac patients about to undergo surgery showed benefits when they specifically had a post-operative patient as a roommate. This could be in part due to the fact that

A) they were able to obtain information about what to expect after surgery.
B) they were relieved to see that their roommate survived the surgery.
C) they were able to obtain information about what to expect after surgery and were relieved to see that their roommate survived the surgery.
D) they had someone to talk to during non-visiting hours.
E) they got control of the television remote control, which is highly correlated to blood pressure.