What Was the Surprising Result of Langer's Follow-Up with the Residential

What was the surprising result of Langer's follow-up with the residential facility eighteen months later?

A) Individuals who received the package of personal hygiene products were much more active than they had been prior to the intervention.
B) Half as many people in the group who returned the mail-in survey, versus the group who did not, reported decreased satisfaction with the facility.
C) Half as many people in the group encouraged to make choices, versus the group encouraged to take advantage of the support staff, had died.
D) None of the individuals who received a pass for an outing with one of the staff took advantage of the opportunity to take a break from the residential facility.