4-amino-3-methylbutanoic acid is treated with thionyl chloride followed by ammonia to obtain compound X. X on reaction with bromine in an alkaline medium gave compound Y. For estimation, Y was titrated with perchloric acid. The volume of 0.1 M perchloric acid needed to react with 0.22 g of Y is

A

50 mL

B

80 mL

C

120 mL

D

200 mL