GMAT Critical Reasoning (CR) | Re: The sustained massive use of pesticides in farming has two

Argument : Sustained massive use of pesticides in farming has two effects:

1.Kills Pests
2.Gives rise to insecticide resistantpests

We are trying to look for a scenario which can help in overcoming or reducing the impact created by the second point.

(Al Using only chemically stable insecticides– Out of Scope, chemical stability not discussed.
(B) Periodically switching the type of insecticide used –Looks correct – Lets hold this
(C) Gradually increasing the quantities of pesticides
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