In What Way Are the Senses of Taste and Smell

In what way are the senses of taste and smell different?

A) Taste buds are modified neurons and olfactory cells contain a pore with supporting cells and elongated cells.
B) Taste buds contain cilia while olfactory cells contain microvilli.
C) Taste depends on a "weighted average" of all the taste messages, while smell depends on the signature of olfactory cells stimulated.
D) There are hundreds of different tastes but only five different smell families.
E) The sensation of taste occurs in the spinal cord, while the sensation of smell occurs in the cerebral cortex.