The pair of enantiomers among the following c | vedclass

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(C) To identify enantiomers,we determine the $(R/S)$ configuration of each chiral center:$I$: Priority order is $-Br (1) > -Ph (2) > -CH_3 (3) > -H (4

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$II$ and $III$

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(C) To identify enantiomers,we determine the $(R/S)$ configuration of each chiral center:$I$: Priority order is $-Br (1) > -Ph (2) > -CH_3 (3) > -H (4)$. With $-H$ on the horizontal line,the configuration is $(S)$.$II$: Priority order is $-Br (1) > -Ph (2) > -CH_3 (3) > -H (4)$. With $-H$ on the horizontal line,the configuration is $(S)$.$III$: Priority order is $-Br (1) > -Ph (2) > -CH_3 (3) > -H (4)$. With $-H$ on the vertical line,the configuration is $(R)$.$IV$: Priority order is $-Br (1) > -Ph (2) > -CH_3 (3) > -H (4)$. With $-H$ on the vertical line,the configuration is $(S)$.Enantiomers are non-superimposable mirror images,which correspond to opposite $(R/S)$ configurations at the chiral center.Comparing the configurations,$II$ $(S)$ and $III$ $(R)$ are enantiomers.

The pair of enantiomers among the following compounds is:

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