Lactic acid is the result of fermentation. Fermentation is when there is a lack of oxygen but youre body is still trying to get you enough ATP molecules (energy) to function. It is the stuff that makes you sore lol
I think it is A because they can just destroy it but D is finding something natural to kill it off but it is GM so it wouldn't help so A
I think it's B an injury to the central nervous system.
The mature stage. I hope this was helpful.
<em><u>PLATO ANSWER:</u></em><em> </em>A and C
Hope this helps, have a amazing day!