In a comparison of the chemoreceptors of the olfactory and gustatory systems,which of the following statements is not true?

A)Only the olfactory receptor cells are neurons with axons.
B)Only the taste receptor cells have ionotropic receptor mechanisms.
C)Only the olfactory receptor cells connect directly to the cerebrum.
D)Only the taste receptor cells are clustered in buds.
E)Only the olfactory receptor cells are continuously regenerated throughout life.