An Older Adult Who Injured Her Knee Several Years Ago

An older adult who injured her knee several years ago tells the nurse that she has been managing the resulting intermittent pain with a prescription for propoxyphene (Darvon) .The nurse is concerned with this treatment plan,primarily because:

A) less expensive alternative analgesics are available.
B) this long-term need for a narcotic warrants investigation.
C) aspirin would likely be as effective in managing the pain.
D) the knee should not still be causing pain for the patient.