Identify the correct order for the given property for following compounds.

Choose the correct answer from the option given below :

The isomeric deuterated bromide with molecular formula $$\mathrm{C_4H_8DBr}$$ having two chiral carbon atoms is

The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with OH$$^-$$ is

Assertion A : Hydrolysis of an alkyl chloride is a slow reaction but in the presence of NaI, the rate of the hydrolysis increases.

Reason R : I$$^{-}$$ is a good nucleophile as well as a good leaving group.

In the light of the above statements, choose the correct answer from the options given below