Which Is TRUE About the Na⁺, K⁺ ATPase Pump in Neurons

Multiple Choice

Which is TRUE about the Na⁺, K⁺ ATPase pump in neurons?

A) It generates a small electrical potential such that the inside is made negative with respect to the outside.
B) It maintains a concentration gradient for K⁺ such that diffusion forces favor movement of K⁺ into the cell.
C) It maintains an electrical gradient at the equilibrium potential of K⁺.
D) It transports equal numbers of sodium and potassium ions with each pump cycle.
E) It pumps 3 Na⁺ ions into the cell for every 2 K⁺ ions it pumps out.