A button cell used in watches functions as follows:$\text{Zn}(s)+{\text{Ag}}_2\text{O}(s)+{\text{H}}_2\text{O}(l)\to 2\text{Ag}(s)+{\text{Zn}}^{2+}(aq)+2{\text{OH}}^{-}(aq)$ Given:$E_{{\text{Zn}}^{2+}/\text{Zn}}^{\circ }=-0.76\text{V}$$E_{{\text{Ag}}_2\text{O}/\text{Ag}}^{\circ }=0.34\text{V}$ The cell potential $E_{cell}^{\circ }$ is:

1. A
   $1.10\text{V}$
2. B
   $0.42\text{V}$
3. C
   $0.84\text{V}$
4. D
   $1.34\text{V}$