It is Very Likely That Humans Use the Main Olfactory

Question

It is very likely that humans use the main olfactory system for pheromone detection, given that:
A) the TRPC2 gene has become a pseudogene in humans.
B) the V2R genes have become pseudogenes in humans.
C) the vomeronasal organ appears only transiently during human development.
D) female humans' menstrual cycles can be influenced by compounds extracted from the armpits of donor females.
E) All of the above

Accepted Answer

Although humans appear to have lost the accessory olfactory system in their evolutionary history, we still appear to detect some pheromones, most likely via the main olfactory system.