Consider the following reaction scheme:
`CH_(3)CH_(2)CO OH overset(X) to CH_(3)underset(Br)underset(|)(C)H-CO OH overset(Y) to underset("Alanine")underset(NH_(3)^(o+))underset(|)(CH_(3)CHCO O^(-))` Which of the following would be suitable for converting propanoic acid into the amino acid alanine?
A. `{:(X,Y),(Br_(2),NaNH_(2)):}`
B. `{:(X,Y),(Br_(2)","P,NaOH):}`
C. `{:(X,Y),(Br_(2)","P,NH_(3)):}`
D. `{:(X,Y),(HBr,NH_(3)):}`
