The olfactory cortex is:
A. One of a chain of very small bones connected in ball-and-socket fashion on the inner side of the tympanic membrane.
B. A collection of brain regions involved in smell, including the amygdala and parts of the cerebral cortex.
C. A tiny scent-seeking thread that extends from olfactory receptor cells through the mucus of the nose.
D. The spiral fluid-filled structure that sends sensory information to the brain via the auditory nerve