Select the appropriate statement for Daniell cell containing ${\mathrm{Cu}}^{2+} \mathrm{and} {\mathrm{Zn}}^{2+}\mathrm{ions}.$

• A

  ${\mathrm{E}}_{\mathrm{cell}}$ does not depend on the concentration of ${\mathrm{Cu}}^{2+}$and ${\mathrm{Zn}}^{2+}$ions 

• B

  ${\mathrm{E}}_{\mathrm{cell}}$ decreases with increase in the concentration of ${\mathrm{Cu}}^{2+}$ ions

• C

  ${\mathrm{E}}_{\mathrm{cell}}$increases with decrease in the concentration of ${\mathrm{Zn}}^{2+}$ions

• D

  All of the above