A catalyst works by providing an alternative reaction pathway to the reaction product. Furthermore the rate of reaction is increased.
My best guest is probably C or A.
I think it is The Athenosphere
As our all basic needs is fulfilled by aerobic respiration but when it comes to vigorous exercise when there is a shortage of oxygen , muscles starts using anaerobic respiration to full fill the need !
another example of anaerobic respiration in our body is in RBC ! Here there is no mitochondria so it has to do anaerobic respiration !
