Rank of the following groups in order of R, S precedence (IV is highest) : -
`underset(1)(-CH(CH_3)_2) " " underset(2)(-CH_2CH_2Br)" " underset(3)(-CH_2Br) " " underset(4)(-C(CH_3)_3)`

Options

A. A) `{:(I,II,III,IV),(3,2,4,1):}`
B. B) `{:(I,II,III,IV),(1,4,2,3):}`
C. C) `{:(I,II,III,IV),(3,4,1,2):}`
D. D) `{:(I,II,III,IV),(3,4,2,1):}`

Answer

C

Explanation

Follows CIP rules.