The correct answer is D
Generalize:
g-mod cotton - resists insects
farmers used-not much diff in quantity of insecticides-
switching makes little sense
Here we want to understand why the farmers said that the gap in insecticide usage was small. There are two possibilities.
1. They overused insecticide since this was the first yield
2. The g-mod insecticide and regular cotton insecticide were sprayed on two different size fields.
3. Cost difference - I doubt such an easy answer exists in the GMAT!
...
Generalize:
g-mod cotton - resists insects
farmers used-not much diff in quantity of insecticides-
switching makes little sense
Here we want to understand why the farmers said that the gap in insecticide usage was small. There are two possibilities.
1. They overused insecticide since this was the first yield
2. The g-mod insecticide and regular cotton insecticide were sprayed on two different size fields.
3. Cost difference - I doubt such an easy answer exists in the GMAT!
...







