The Electrochemical Potential for an Ion in Solution Is Given $\mu=R T \ln C+Z \mathfrak{S} \Psi$

The electrochemical potential for an ion in solution is given as

A) $\mu=R T \ln C+Z \mathfrak{S} \Psi$
B) $\mu=\mu^{0}+R T C+z \Im \Psi$
C) $\mu=\Delta \mu^{0}+R T \Delta C+Z \mathfrak{S} \Delta \Psi$
D) $\mu=\mu^{0}+\mathrm{RT} \ln \mathrm{C}+\mathbf{z} \mathfrak{S} \Psi$
E) $\mu=-R T \ln K_{e q}$