Given:$E_{{\text{Cr}}^{3+}/\text{Cr}}^0=-0.74\text{V}$$E_{{\text{MnO}}_4^{-}/{\text{Mn}}^{2+}}^0=+1.51\text{V}$$E_{{\text{Cr}}_2{\text{O}}_7^{2-}/{\text{Cr}}^{3+}}^0=+1.33\text{V}$$E_{{\text{Cl}}_2/{\text{Cl}}^{-}}^0=+1.36\text{V}$ Based on the data given above, the strongest oxidising agent will be:

1. A
   ${\text{Cr}}^{3+}$
2. B
   ${\text{Mn}}^{2+}$
3. C
   ${\text{MnO}}_4^{-}$
4. D
   ${\text{Cl}}^{-}$