Must be able to know what you are hoping to teach.
go to college.
Answer:
from the answers choices given, A would be a serious concern for an environmentalist.
Explanation:
I don't know if you have read any of my answers like this but you need to re read the story and then answer the questions cause i am not going to help you on the stupid questions like this. I used to do this but then someone told me what I am telling you so please do take these ideas. Hope it helps!!! Good Luck!!!!!
doesn't would be the correct contraction