In Studying the Connected Networks of Brain Regions in Schizophrenia

In studying the connected networks of brain regions in schizophrenia, Wexler et al. (2009) concluded that:

A) White matter pathology plays a critical role in the cognitive impairments seen in schizophrenia.
B) Six genes appear to be responsible for the development of the forebrain and stress responses.
C) Grey matter pathology plays a critical role in the cognitive impairments seen in schizophrenia.
D) All of the above