You work in a hospital with a chemical dependency unit. A new patient in the emergency room shows ...

You work in a hospital with a chemical dependency unit. A new patient in the emergency room shows signs of paranoid schizophrenia, but a toxicology screen indicates he took cocaine.
 
  He is sent to your unit,
  and one week later, he still seems to show signs of paranoid
  schizophrenia (but you are not a doctor). What do you do?
  A. Schedule the patient for an assessment with you and an
  evaluation by a mental health professional to determine if a cooccurrence
  exists.
  B. Recognize that the patient has a co-occurrence of mental illness
  and cocaine abuse, and assess for the best treatment approach.
  C. Send the patient to the psychiatric ward for evaluation.
  D. Ask the patient how often he uses cocaine.