Match the followings:
| A. Resting potential | I. Rapid rise in voltage inside the neuron |
| B. Depolarization | II. Stimulation level needed to trigger an action potential |
| C. Repolarization | III. Return to resting state after depolarization |
| D. Threshold | IV. Voltage difference when neuron is inactive |
1
A-I, B-II, C-III, D-I
2
A-II, B-III, C-I, D-IV
3
A-IV, B-I, C-III, D-II
4
A-IV, B-III, C-II, D-I