Regarding the development of schizophrenia, which of the following statements is FALSE?

a. The older a man is when he fathers a child, the more likely it is that his child will develop schizophrenia because of genetic mutations in aging male reproductive cells.
b. The risk of developing schizophrenia is about as high for the fraternal twin of a schizophrenic as for a child with one schizophrenic parent.
c. When children of schizophrenic parents are raised away from their chaotic home environment, they are significantly less likely to become psychotic.
d. Schizophrenia is more common among close relatives and tends to run in families.

C