What is the major product obtained in the following reaction?

In the given reaction,the products are:

Given below are four compounds:
$(a)$ $n$-propyl chloride,
$(b)$ $iso$-propyl chloride,
$(c)$ $sec$-butyl chloride,
$(d)$ $neo$-pentyl chloride.
Percentage of carbon in the one which exhibits optical isomerism is:

Match List-$I$ with List-$II$:

List-$I$ (Reaction)	List-$II$ (Name of reaction)
$A$. $2C_6H_5X + 2Na \xrightarrow{\text{Dry Ether}} C_6H_5-C_6H_5 + 2NaX$	$I$. Lucas reaction
$B$. $ArN_2^{+} X^{-} \xrightarrow[HCl]{Cu} ArCl + N_2 \uparrow + CuX$	$II$. Finkelstein reaction
$C$. $C_2H_5Br + NaI \xrightarrow{\text{Acetone}} C_2H_5I + NaBr$	$III$. Fittig reaction
$D$. $(CH_3)_3COH \xrightarrow[ZnCl_2]{HCl} (CH_3)_3CCl + H_2O$	$IV$. Gatterman reaction

Choose the correct answer from the options given below:

What is the product of the following reaction?

Which of the following undergoes hydrolysis most easily?