Recent Research into the Possibility of a Neurochemical Basis for Anxiety

Recent research into the possibility of a neurochemical basis for anxiety disorders has generated evidence that suggests anxiety disorders may result from

A) disturbances in the neural circuits using norepinephrine.
B) disturbances in the neural circuits using GABA.
C) too much activity in the neural circuits using serotonin.
D) too little activity in the neural circuits using serotonin.