Which of the following statements might someone with a biological perspective make about schizophrenia?

A) it is a severe breakdown of the ego as a result of a disturbed relationship between mother and child
B) its symptoms are shaped by the processes of reinforcement and extinction
C) its symptoms, such as irrational beliefs, are a severe form of illogical thinking
D) it is caused by genetics, chemical influences, and brain structural defects

Someone with a biological perspective would view schizophrenia as a disorder caused by genetic predisposition, chemical imbalances in the brain, and/or structural defects in the brain. This perspective emphasizes the importance of biological factors in the development and manifestation of schizophrenia. Options A, B, and C are not consistent with a biological perspective and may be more compatible with psychodynamic, behavioral or cognitive perspectives, respectively.