Task: Question Understanding
Input (English): Question: Chemical pesticides are sometimes sprayed on crops to kill insects that eat the crops. People have different viewpoints about the use of pesticides on crops. What might be a concern about using pesticides on the crops? (A) Will the food ripen? (B) Will the food stay fresh? (C) Will the food harm humans? (D) Will the food harm bugs in the home?
Output (English): concern, using, pesticides, crops?