The standard EMF for the cell reaction, $\mathrm{Zn}+{\mathrm{Cu}}^{2+}\iff \mathrm{Cu}+{\mathrm{Zn}}^{2+}\text{ is }1.10\text{ volt at }{25}^{\circ }\mathrm{C}\text{. }$The EMF for the cell reaction, when 0.1 ${\mathrm{Cu}}^{2+}\text{ and }0.1\mathrm{M}{\mathrm{Zn}}^{2+}$ solutions are used, at 25°C is: 

• A

  1.10V

• B

  0.110V

• C

  -1.10V 

• D

   -0.110V