A button cell used in watches functions as following <br> $Zn(s) + Ag_2O(s) + H_2O (l) \rightleftharpoons 2Ag(s) + Zn^{2+} (aq) + 2OH^- (aq)$ <br> If half cell potentials are <br> $Zn^{2+} (aq) + 2e^- \to Zn (s) ; \; \; \; E^o = -0.76V $ <br> $ Ag_2O(s) + H_2O (l) + 2e^- \to 2Ag(s) + 2OH^- (aq),\; \; \; E^o = 0.34 V $ <br> The cell potential will be -

Question

( A ) 0.42 V
( B ) 0.84 V
( C ) 1.10 V
( D ) 1.34 V