Analyze the consequences of this event.?

The best answer I think would be A. Without insecticides, the insect population would be much more difficult to maintain at a normal level. The insect population could spiral out of control and, depending on the insect, could cause financial loss. B is incorrect due to the answer stating an increase instead of an uncontrollable increase. Also, the insects may not be useful for experiments due to the mixing and breeding with the unaltered insects. But B is still a good answer. C is most likely completely incorrect; the insects had no other alterations other than resistance, so they would still be able to survive in the wild, seeing as it is impossible to domesticate insects.