Which of the Following Is NOT True of the Equlibrium $\Delta$

Multiple Choice

Which of the following is NOT true of the equlibrium potential?

A) It is the potential at which the flux of an ion is zero
B) It is the potential at which diffusive force balances electrical force
C) It is the potential for which $\Delta$$\mu$ for an ion is zero
D) It is the potential at which the conductance for an ion is zero
E) It is the potential at which the Nernst equation gives the membrane potential