In a set of reactions, propionic acid yielded a compound D
`underset((A))(CH_(3)CH_(2)COOH) overset(SOCl_(2))(rarr) B overset(NH_(3))(rarr) C overset(Br_(2)//KOH)(rarr) D`
The structure of D would be
A. `CH_(3)CH_(2)NH_(2)`
B. `CH_(3)CH_(2)CH_(2)NH_(2)`
C. `CH_(3)CH_(2)CONH_(2)`
D. `CH(3)CH_(2)NHCH_(3)`.