A 40-year-old patient diagnosed as having schizophrenia with a history of assaultive behavior and substance abuse is being considered for discharge from a long-term psychiatric facility. The patient's elderly parents have expressed willingness to have the patient return homE. In formulating discharge plans, the social worker should FIRST evaluate which of the following factors?
A. medication compliance
B. potential danger to the family
C. exposure to illegal substances
D. rehabilitative opportunities