Which of the Following Is True About the Neurotransmitters Involved

Which of the following is true about the neurotransmitters involved in schizophrenia?

A) Excess dopamine activity in the amygdala and unusually low dopamine activity in the frontal cortex play a role in schizophrenia.
B) New research suggests that epinephrine, serotonin, and GABA also play a role in schizophrenia.
C) New research suggests that norepinephrine, glutamate, and ACH also play a role in schizophrenia.
D) Excess dopamine activity in the mesolimbic pathway and unusually low dopamine activity in the prefrontal area play a role in schizophrenia.