In a set of reaction propipnic acid yielded a compound D $CH_3CH_2COOH \underrightarrow{SOCl_2} \quad B \quad \underrightarrow{NH_3} \quad C \quad \underrightarrow{KOH} D$ The structure of D would be :

Question

$\begin{array}{1 1} CH_3CH_2NH_2 \\ CH_3CH_2CH_2NH_2 \\ CH_3CH_2CONH_2 \\ CH_3CH_2NHCH_3 \end{array} $