39. If one increases the concentration of outside neurons, which of the followings would most likely occur in physiological conditions? (A) The neurons would be depolarized, because the equilibrium potential of would become more negative. (B) The neurons would be hyperpolarized, because the equilibrium potential of would become more negative. (C) The neurons would be depolarized, because the equilibrium potential of would become more positive. (D) The neurons would be hyperpolarized, because the equilibrium potential of would become more positive.