It’s actually D!If the prey can’t eat enough food because of limited plants they die off which means the predators die off!
I believe it is C.) Tasting a solution you think is edible after creating it in the lab.
I could be wrong though.
It is D
:D =-O :-P ;-) :-( :-) :-! :-$ B-) :O :-* :-D :'( :-\ O:-) :-[
The answer to your question would be letter D