Alan Performs an Elevated Plus Maze Experiment, Measuring a Reduction

Alan performs an elevated plus maze experiment, measuring a reduction in anxiety in the rat. What mechanistic action of the benzodiazepine explains this effect?

A) Activation of BZ I sites in both the amygdala and hypothalamus
B) Activation of BZ II sites in both the amygdala and hypothalamus
C) Activation of BZ I sites in the amygdala; activation of BZ II sites in the hypothalamus
D) Activation of BZ II sites in the amygdala; activation of BZ I sites in the hypothalamus