What would occur if sodium channels remained open once membrane depolarization was complete?

a. the neuron would quickly hyperpolarize
b. the signal would not be sent to other neurons
c. repolarization would occur, but more slowly
d. repolarization of the membrane would not occur.

C.  Repolarization would occur, but much more slowly.

Explanation:

Repolarization is the change in membrane potential that returns it to a negative value just after the depolarization phase of an action potential has changed the membrane potential to a positive value. Sodium channels slow down this process.

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explanation:

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction