Standard electrode potential for \[S{{n}^{4+}}/S{{n}^{2+}}\] couple is + 0.15 V and that for the \[C{{r}^{3+}}/Cr\] couple is\[-0.74V\]. These two couples in their standard state are connected to make a cell. The cell potential will be:

• A. +1.19 V           
• B. +0.89 V
• C. +0.18 V           
• D. +1.83 V