In which of the following reaction `H_(2)O_(2)` acts as a reducing agents?
`A.H_(2)O_(2)+2H^(o+)+2e^(-)to2H_(2)O`
`B. H_(2)O_(2)-2e^(-2)toO_(2)+2H^(o+)`
`C. H_(2)O_(2)+2e^(-)to2OH^(ɵ)`
D. `H_(2)O_(2)+2OH^(ɵ)-3e^(-)toO_(2)+2H_(2)O`
A. `I and II`
B. `III and IV`
C. `I and III`
D. `II and IV`