How Are Schizophrenia and Delusional Disorder Different

How are schizophrenia and delusional disorder different?

A) In schizophrenic delusions, the imagined events could be happening but they're not; in delusional disorder, the imagined events aren't possible.
B) Delusional disorder usually lasts only a few days; schizophrenia is long lasting and chronic.
C) Delusional disorder is often triggered by stressful events; schizophrenia is never precipitated by stressful events.
D) Schizophrenia usually begins in adolescence or early adulthood; delusional disorder often has an age of onset in the 40s.