A Client Who Has a Major Depressive Episode Has Been

A client who has a major depressive episode has been hearing voices and feeling followed by someone. A history reveals that the client has had these alternating symptoms before. The client also has experienced time free from these symptoms and has been able to function adequately. The nurse interprets these findings as suggesting which disorder?

A) Paranoid schizophrenia
B) Undifferentiated schizophrenia
C) Brief psychotic disorder
D) Schizoaffective disorder