Which of These Lists the Events of an Action Potential

Multiple Choice

Which of these lists the events of an action potential in the correct order?

A) Na ⁺ gates open→inside of axon becomes positive→Na ⁺ gates close→K ⁺ gates open→inside of axon becomes negative
B) K ⁺ gates open→inside of axon becomes positive→K ⁺ gates close→Na ⁺ gates open→inside of axon becomes negative
C) K ⁺ gates open→inside of axon becomes negative→K ⁺ gates close→Na ⁺ gates open→inside of axon becomes positive
D) Na ⁺ gates open→inside of axon becomes negative→Na ⁺ gates close→K ⁺ gates open→inside of axon becomes positive
E) Na ⁺ gates open→inside of axon becomes positive→K ⁺ gates close→Na ⁺ gates open→inside of axon becomes negative