GMAT Critical Reasoning (CR) | Re: Twenty percent of all energy consumed in the United States

This is an assumption question so the conclusion has to be strengthened. What the argument is saying is that change appliance make them efficient then the energy will be saved..

If i prethink i will have answers like- people will use the new items , they have money to replace these

all answers relating to other things are irrelevant.

crux has to be these need to be used.

A says that these are using but the usage behavior is not changing.

hmmm- "BA- BAAM" our answer- same usage behavior
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