The axon has several roles in the neuron except:

A. action potential.

B. carring a neural impulse.

C. encased by myelin sheath.

D. receiving messages from other cells.

E. epolarization.

Receiving messages from other cells ( D )

Explanation:

The Axon is a long slender projection of the nerve cell that transmits electrical impulses from the the cell body to the dendrites and other tissues in the body of a vertebrate like the bones , muscles and glands

while the dendrite is charged with receiving messages from other cells in the body of  a vertebrate. the axon carrying a neural impulse and also depolarization ( a change within a cell caused by change in electric charge distribution ) and this change cause a decrease in the negative charge inside the cell. are some of the functions of the Axon as well.

The Axon is usually encased by myellin sheath