Respuesta :

Nodes of Ranvier is a point along an axon where an impulse jumps. It is covered by a myelin sheath. Hope this helps.
The question or the problem was asking to choose among the following choices the states the name for a point along the axon where an impulse jumps and base on my further research and understanding about the said problem, I would say that the answer would be letter A. Nodes of Ranvier.  I hope this would help