The overall equation of a voltaic cell is:

$${\text{Ni(s)}} + {\text{2A}}{{\text{g}}^ + }{\text{(aq)}} \rightleftharpoons {\text{N}}{{\text{i}}^{2 + }}{\text{(aq)}} + {\text{2Ag(s)}}\;\;\;\;\;{E^\Theta } = {\text{1.06 V}}$$

The standard electrode potential for ${\text{N}}{{\text{i}}^{2 + }}{\text{(aq)}} + {\text{2}}{{\text{e}}^ - } \rightleftharpoons {\text{Ni(s)}}$, is $- 0.26{\text{ V}}$. What is the standard electrode potential for the silver half-cell, ${\text{A}}{{\text{g}}^ + }{\text{(aq)}} + {{\text{e}}^ - } \rightleftharpoons {\text{Ag(s)}}$, in V?

A.     $- 1.32$

B.     $- 0.80$

C.     $+ 0.80$

D.     $+ 1.32$

C