Depolarization is to excitation, while Hyperpolarization is to inhibition.
Option 4 is correct.
Hyperpolarization is opposite of Depolarization.
Depolarization is a process by which cells undergo a change in membrane potential. It is a process of shift in electric charge that results in less negative charge inside the cell.
Hyperpolarization is when the membrane potential becomes more negative at a particular spot on the neuron’s membrane.
