Which of the following reaction occurs a...

Which of the following reaction occurs at the cathode during the working of alkaline dry cell ?

A

Zn is converted into ZnO

B

`MnO_2` is converted into `Mn_2O_3`

C

Zn is converted into `Zn^(2+)`

D

`Mn_2O_3` is converted into` MnO_2`

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