In a Study by Mahler and Kulik (1998), Patients Awaiting

In a study by Mahler and Kulik (1998) , patients awaiting heart surgery were shown one of three preparatory videotapes or no videotape at all. Which group of patients recovered more effectively from the surgery?

A) those shown a tape with an expert conveying information
B) those shown a tape with the expert and patient interviews
C) those shown a tape with the expert and patient accounts emphasizing their "ups And downs"
D) all three groups fared equally, and better than the group shown no tape