An Older Patient with End-Stage Emphysema Refuses Physical Therapy, Continues

An older patient with end-stage emphysema refuses physical therapy, continues to smoke, and realizes that death will probably result from emphysema. Which principle should guide this patient's rehabilitation?

A) Loss and its meaning vary with every person.
B) Convalescence is a gradual process that can take a long time.
C) Values are examined and limitations are put into perspective over time.
D) The duration of rehabilitation depends on the psychological acceptance of the older adult's condition.