Mary has been taking Valium for four weeks for her symptoms of anxiety. When her family doctor refused to renew the prescription, Mary went to another physician and got an even stronger-dosage prescription for Valium. Mary is running the risk
of:

A.) developing tardive dyskinesia.

B.) becoming addicted to Valium.

C.) developing some of the positive symptoms of schizophrenia, such as hallucination and delusions.

D.) decreasing the level of GABA in her brain to dangerously low levels.