In the following groups \[\begin{matrix} -OAc \\ \text{I} \\ \end{matrix}\] \[\begin{matrix} -OMe \\ \text{II} \\ \end{matrix}\] \[\begin{matrix} -OS{{O}_{2}}Me \\ \text{III} \\ \end{matrix}\] \[\begin{matrix} -OS{{O}_{2}}C{{F}_{3}} \\ \text{IV} \\ \end{matrix}\] The order of leaving group ability is [IIT 1997]

In the following groups \[\begin{matrix

1.	In the following groups \[\begin{matrix} -OAc \\ \text{I} \\ \end{matrix}\] \[\begin{matrix} -OMe \\ \text{II} \\ \end{matrix}\] \[\begin{matrix} -OS{{O}_{2}}Me \\ \text{III} \\ \end{matrix}\] \[\begin{matrix} -OS{{O}_{2}}C{{F}_{3}} \\ \text{IV} \\ \end{matrix}\] The order of leaving group ability is [IIT 1997]
A.	I > II > III > IV
B.	IV > III > I > II
C.	III > II > I > IV
D.	II > III > IV > I
Answer» C. III > II > I > IV

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