GMAT Reading Comprehension (RC) | Re: GMATPREP ChallengeQ -More selective than most chemical pesti

Time Taken: 10 mins.
1. The passage is primarily concerned with
A. explaining why until recently scientists failed to recognize the risks presented by biocontrol agents.
Nope.Nothing like that has been mentioned.
B. emphasizing that biocontrol agents and chemical pesticides have more similarties than differences.
>>Nope.Nothing like that has been mentioned.
C. suggesting that only certain biocontrol agents should be used to control plant or animal pasts.
>>Nope,no preferance regarding