Why Do Neural Impulses Travel Faster in Myelinated Axons Than

Why do neural impulses travel faster in myelinated axons than in unmyelinated axons?

A) Myelin is a better conductor of electricity than other material in the axon.
B) The impulse leaps from gap to gap in the myelin sheath rather than traveling continuously down the axon.
C) Myelin prevents other substances from interfering with the impulse.
D) Unmyelinated axons are less developed than myelinated axons.