Which of the Following Correctly Relates the Status of the Sodium

Which of the following correctly relates the status of the sodium channel during an action potential cycle? (m-gate = activation gate, h-gate = inactivation gate)

A) while resting, both the m-gate and h-gate are closed
B) during depolarization, both the m-gate and h-gate open allowing Na⁺ to exit the cell
C) during repolarization, only the m-gate is closed
D) during the refractory period, both the m-gate and h-gate are closed
E) none of the above