The Wife of a Patient with Paranoid Schizophrenia Tells the Nurse,"I've

The wife of a patient with paranoid schizophrenia tells the nurse,"I've learned that my husband has several close relatives with the same disorder.Does this problem run in families?" The response based on recent discoveries in the field of genetics would be:

A) "Your children should be monitored closely for the disorder."
B) "Research tends to support a familiar tendency to schizophrenia."
C) "There is no concrete evidence; it is just as likely a coincidence."
D) "Only bipolar disorder has been identified to have a genetic component."