Using the following Latimer diagram for bromine,
`pH=0, BrO_(4)^(-) overset(1.82 V)rarr BrO_(3)^(-)overset(1.50 V)rarr HBrO overset(1.595 V) rarr Br_(2) overset(1.06552 V) rarr Br^(-)`
the species undergoing disproportionation is
A. `BrO_(4)^(-)`
B. `BrO_(3)^(-)`
C. HBrO
D. `Br_(2)`