The correct step for the order of the action potential is hyperpolarization.
What is Hyperpolarization?
This refers to the change in the membrane of a cell which is the opposite of depolarization that makes it more negative.
Hence, we can see that based on the given chart, one can infer that the returning to the rest of the membrane potential is the process of hyperpolarization.
Read more about hyperpolarization here:
https://brainly.com/question/12982897
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