Solutions a and B Are Separated by a Semipermeable Membrane $\mathrm{K}^{+}$

Solutions A and B are separated by a semipermeable membrane that is permeable to $\mathrm{K}^{+}$ but not to $\mathrm{Cl}^{-}$ . Solution A is $100 \mathrm{mM}$ $\mathrm{KCl}$ , and solution $\mathrm{B}$ is $1 \mathrm{mM} \mathrm{KCl}$ . Which of the following statements about solution A and solution $\mathrm{B}$ is true?

A) $\mathrm{K}^{+}$ ions will diffuse from solution A to solution $B$ until the $\left[\mathrm{K}^{+}\right]$ of both solutions is $50.5 \mathrm{mM}$
B) $\mathrm{K}^{+}$ ions will diffuse from solution $\mathrm{B}$ to solution A until the $\left[\mathrm{K}^{+}\right]$ of both solutions is $50.5 \mathrm{mM}$
C) $\mathrm{KCl}$ will diffuse from solution $\mathrm{A}$ to solution $\mathrm{B}$ until the $[\mathrm{KCl}]$ of both solutions is $50.5 \mathrm{mM}$
D) $\mathrm{K}^{+}$ will diffuse from solution $\mathrm{A}$ to solution B until a membrane potential develops with solution A negative with respect to solution B
E) $\mathrm{K}^{+}$ will diffuse from solution $\mathrm{A}$ to solution B until a membrane potential develops with solution A positive with respect to solution B