Which of the following statements concerning schizophrenia is not correct?
a. schizophrenia is a very costly illness due to its early onset and lengthy hospitalizations.
b. patients with chronic disorders can be treated successfully and have a full recovery.
c. schizophrenic disorders have numerous symptoms that may consist of delusions and hallucinations.
d. patients are less likely to relapse if they return to a supportive family after treatment.