What are the products $C$ and $D$ in the given reaction?
$Phthalimide$ $\xrightarrow{KOH} A$ $\xrightarrow{C_2H_5Br} I$ $\xrightarrow{HOH/H^+} C + D$

The product obtained by the reaction of ethyl chloride with potassium cyanide is reduced with sodium and alcohol to give ...............

The product $[X]$ of the given reaction is:

In a set of reactions,propionic acid yielded a compound $D$.
$CH_3CH_2COOH$ $\xrightarrow{SOCl_2} B$ $\xrightarrow{NH_3} C$ $\xrightarrow{KOH, Br_2} D$
The structure of $D$ would be

Given below are two statements,one is labeled as Assertion $(A)$ and other is labeled as Reason $(R).$
Assertion $(A):$ Gabriel phthalimide synthesis cannot be used to prepare aromatic primary amines.
Reason $(R) :$ Aryl halides do not undergo nucleophilic substitution reaction.
In the light of the above statements,choose the correct answer from the options given below.

Gabriel phthalimide synthesis is used for the preparation of which of the following?