Consider the following anions.
(I) `CF_(3)-overset(O)overset(||)underset(O)underset(||)(S)-O^(-)` (II) `C_(6)H_(5)-overset(O)overset(||)underset(O)underset(||)(S)-O^(-)` (III)
(IV) `CH_(3)-overset(O)overset(||)(C)-O^(-)`
When attached to `sp^(3)`-hybridized carbon, their leaving group ability in nucleophilic substitution reactions decreases in the order
A. `I gt II gt III gt IV`
B. `I gt II gt IV gt III`
C. `IV gt I gt II gt III`
D. `IV gt III gt II gt I`
