Identify the compound \( B \) in the following series of reactions Ethanenitrile \( \xrightarrow{ Na + C _{2} H _{5} OH } A \xrightarrow[0-5^{\circ} Cl ]{ NaNO _{2}+ HCl } B \)
(a) \( CH _{3} CH _{3} Cl \)
(b) \( CH _{3} CH _{2} OH \)
(c) \( CH _{3} CH _{2} NH _{2} \)
(d) \( CH _{3} CH _{2} CH _{2} OH \)
