I think C because to not get lightheaded, you need blood to go to your brain and if you're exercising and you feel light headed or dizzy, you wouldn't be able to exercise!. So from my understanding, the answer would be C but I am not 100% Hope this helps! :)
It should be 4. As we can see the relative reactivity of enzymes increase in skins a which has a basic rnvironment. Correct me if I’m wrong please. Thanks
Answer:
Creo que es sudor
Explanation: No estoy seguro de no hablar español 99.9% posibilidad de que me equivoque (Usé google translate).
