In the oxidation reactions of `KMnO_(4)` , in acidic medium, only `H_(2)SO_(4)` is used to produce acidic medium but not HCl(or ) `HNO_(3)` because
A. HCl reacts with `KMnO_(4)` and produces `Cl_(2)`, `HNO_(3)` itself is oxidizing agent.
B. `HNO_(3)` reacts with `KMnO_(4)` and produces `Cl_(2)`, HCl itself acts as oxidizing agent.
C. Both `HNO_(3)` and HCl liberates `Cl_(2)` from `KMnO_(4)`
D. Both `HNO_(3)` and HCl liberates `O_(2)` from `KMnO_(4)`