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(D) To determine the absolute configuration,we assign priorities to the groups attached to each stereocenter using the Cahn-Ingold-Prelog $(CIP)$ rule

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$R$ || $R, S$ || $R$ || $R, S$

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(D) To determine the absolute configuration,we assign priorities to the groups attached to each stereocenter using the Cahn-Ingold-Prelog $(CIP)$ rules.$(I)$ The central carbon is bonded to $-OH$ $(1)$,$-Cl$ $(2)$,$-OCH_3$ $(3)$,and $-CH_3$ $(4)$. The configuration is $R$.$(II)$ This is a bicyclic system. The bridgehead carbons are chiral. Assigning priorities leads to $R, S$ configuration.$(III)$ The carbon at the junction is bonded to $-CH=NH$ $(1)$,$-CH_2=N$ $(2)$,and the ring carbons. The configuration is $R$.$(IV)$ This is a substituted ethane derivative. Each carbon is a stereocenter. Assigning priorities leads to $R, S$ configuration.Thus,the correct sequence is $R, R, S, R, R, S$.

What is the absolute configuration of the following molecules? ($NS =$ the molecule has no stereocenter) Note: For the purpose of this question only,the order of stereocenters is not specified; i.e.,$R, S = S, R$.
$(I)$ || $(II)$ || $(III)$ || $(IV)$

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What is the absolute configuration of the following molecules? ($NS =$ the molecule has no stereocenter) Note: For the purpose of this question only,the order of stereocenters is not specified; i.e.,$R, S = S, R$.$(I)$ || $(II)$ || $(III)$ || $(IV)$