In Contrast to Retrospective Research, Which Is Based on After-The-Fact

In contrast to retrospective research, which is based on after-the-fact reports, what is the purpose of prospective research studies of patients with schizophrenia?

A) They look at brain-imaging diagnostic tests to determine if patients with schizophrenia have structural neurological defects.
B) They examine factors that predict the occurrence or recurrence of schizophrenic symptoms in the future.
C) They assess recovery rates in patients with schizophrenia who have taken different medications.
D) They compare genetic, biological, and social etiological factors to try to determine inheritance patterns in offspring of parents with schizophrenia.