When Air Is Drawn in Through the Nose

When air is drawn in through the nose,

A) in a normal, relaxed inspiration approximately 80 percent of the air passes the olfactory organs.
B) sniffing repeatedly increases the intensity of the olfactory stimulation and permits sampling of virtually all of the air taken in at each inspiration.
C) it is swirled to provide the turbulence that brings airborne compounds to the olfactory organs.
D) lipid-soluble materials are absorbed into the mucus prior to being able to be smelled, while water-soluble molecules are sampled directly.
E) None of the answers are correct.