For the reaction : `I^(-)+ClO_(3)^(-)+H_(2)SO_(4) to Cl^(-)+HSO_(4)^(-)+I_(2)`
The correct statement(s) in the balanced equation is/are:
A. stoichiometric coefficient of `HSO_(4)^(-)` is 6
B. iodide is oxidized
C. sulphur is reduced
D. `H_(2)O` is one of the products.