As Part of a Debate on the Etiology of Schizophrenia

As part of a debate on the etiology of schizophrenia, two teams of students are preparing their sides by carefully checking the literature. You have been assigned to the side that will argue that genetic factors are not the only ones involved. Which of the following might you want to use during the debate?

A) Dopamine is the neurotransmitter most often cited as playing a role in schizophrenia.
B) The concordance rate for dizygotic twins is less than then the concordance rate for monozygotic twins.
C) Most mental health professionals do not believe there is any cure for schizophrenia, although there might be some recovery.
D) The risk of development of schizophrenia is correlated with the closeness of the genetic relationship.