Which Describes the Response of the Voltage-Gated Channels When an Axon

Multiple Choice

Which describes the response of the voltage-gated channels when an axon is stimulated to threshold?

A) K⁺ channels open before the Na⁺ channels.
B) Na⁺ channels are activated and then inactivated.
C) K⁺ channels open at the same time as the Na⁺ channels.
D) K⁺ channels are opened when Na⁺ binds to the channel.
E) K⁺ influx causes Na⁺ channels to inactivate.