Which of the Following Supports a Close Association Between Olfaction

Which of the following supports a close association between olfaction and emotion?

A) The fact that the VNO is much smaller in humans than in in rats.
B) The fact that children of women who use alcohol to counter negative emotional states have no reaction to the smell of alcoholic beverages.
C) The presence of axonal connections between the olfactory epithelium and the olfactory bulb.
D) The fact that a single neuron in the piriform cortex has extensive projections to limbic areas.