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In H(2)-O(2) fuel cell, the reaction occ...

In `H_(2)-O_(2)` fuel cell, the reaction occurring at cathode is

A

`2H_(2)+O_(2) rarr 2H_(2)O(l)`

B

`H^(o+)+overset(c-)(O)H rarr H_(2)O`

C

`O_(2)+2H_(2)O+4e^(-) rarr 4overset(c-)(O)H`

D

`H^(c-)+e^(-) rarr (1)/(2)H_(2)`

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