Conduction Along Myelinated Fibers Is Known as Saltatory Conduction Because

Conduction along myelinated fibers is known as saltatory conduction because

A) sodium ions are especially abundant in this kind of fiber.
B) the sodium pump is responsible for generating action potentials.
C) action potentials are especially intense at the nodes.
D) the "all-or-none" threshold "jumps" in this kind of fiber.
E) action potentials "jump" from one node to the next.