All of the Following Lines of Evidence Resulted in the Conclusion

All of the following lines of evidence resulted in the conclusion that schizophrenia may be associated with dopamine activity EXCEPT

A) people who do not have schizophrenia but who take cocaine can show psychotic reactions.
B) several drugs, including cocaine, lower or inhibit dopamine activity.
C) medications that reduce schizophrenic symptoms inhibit dopamine release.
D) people with schizophrenia tend to have a greater number of dopamine receptors in certain areas of their brains.
E) overdoses of amphetamines produce symptoms similar to paranoid schizophrenia.