Which of the following statements about stress and schizophrenia is true?

A) There is no empirically demonstrated link between stress and schizophrenia.
B) Stressful circumstances can cause schizophrenia in people without a genetic disposition to the disorder.
C) Stressful events in adulthood may be especially important among people with schizophrenia who experienced adverse events in childhood.
D) No link is demonstrated between stress during childhood, adult stress, and schizophrenia.