Which Is True of the Potassium Equilibrium Potential

Which is true of the potassium equilibrium potential?

A) In neurons, it is usually around 70mV.
B) It describes the membrane potential at which all ionic movement stops.
C) It predicts the membrane potential when the neuron is at steady state.
D) It is the membrane potential where electrical forces and concentration gradients are equal and opposite.
E) It plays little or no role in setting the resting membrane potential.