Iso-electronic species is [RPMT 2002]

• A.        \[{{F}^{-}},\,\,{{O}^{-2}}\]  
• B.        \[{{F}^{-}},\,\,O\]
• C.        \[{{F}^{-}},\,\,{{O}^{+}}\]   
• D.        \[{{F}^{-}},\,\,{{O}^{+2}}\]