For the answer to the question above,
I am going to assume that MnO2 is a catalyst most likely breakdown of H2O2
H2O2----MnO2------> H2O + 1/2 O2
in that case, B) is answered in the trump suit
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edit: I need to have a plate account to see - which I don't
is it something like
2H2O2 ---------------> 2H2O + O2
...............MnO2
where MnO2 is underneath the arrow, in that case, it means it is a catalyst and production will DRASTICALLY decrease in production
