If I Wanted to Reject the Theory That Ventricle Enlargement

If I wanted to reject the theory that ventricle enlargement causes schizophrenia, I could point to studies that revealed that:

A) patients with recurring depression, and not schizophrenia, have enlarged ventricles
B) patients suffering from anxiety disorders, and not schizophrenia, have enlarged ventricles
C) patients with enlarged ventricles do not have schizophrenia
D) all of the above can be used