What does the molecular formula $C_3H_9N$ represent?

The final product $A$, formed in the following multistep reaction sequence is:

The major product of the following reaction is:

The product $(A)$ is:

The product $(B)$ is:

Given below are two statements:
Statement $I$: The dipole moment of $R-CN$ is greater than $R-NC$ and $R-NC$ can undergo hydrolysis under acidic medium to produce $R-NH_2$ and $HCOOH$.
Statement $II$: $R-CN$ hydrolyses under acidic medium to produce a compound which on treatment with $SOCl_2$ followed by the addition of $NH_3$ gives another compound $(x)$. This compound $(x)$ on treatment with $NaOCl/NaOH$ gives a product, that on treatment with $CHCl_3/KOH/\Delta$ produces $R-NC$.
In the light of the above statements, choose the correct answer from the options given below: