Nernst equation is, $\mathrm{E}={\mathrm{E}}^0-\frac{\mathrm{RT}}{\mathrm{nF}}\mathrm{InQ}$.If $\mathrm{Q}={\mathrm{K}}_{\mathrm{c}}$ then which one is not correct

As we know that according to equation,

$\mathrm{E}={\mathrm{E}}^0-\frac{\mathrm{RT}}{\mathrm{nF}}\mathrm{InQ}$

When we take equilibrium zero E=0
By putting this value in above equation

${\mathrm{E}}^{0 }=\frac{\mathrm{RT}}{\mathrm{nF}}{\mathrm{InK}}_{\mathrm{C}}$

∴  ${\mathrm{K}}_{\mathrm{c}}= {\mathrm{e}}^{\frac{{\mathrm{nFE}}^0}{\mathrm{RT}}}$

From the above we can say that option A), $\mathrm{E}={\mathrm{E}}^0$ is not correct, making it the required solution.