PTF97.S3.Q07 - Automobile manufacturers who began two decades ago

ava.sekowski

I chose C but I can see why it is A now. The premise is that there are these two cars which have different uses and weights. And we also learn that lighter cars are more fuel efficient. Therefore when the conclusion says "Since most automobile traffic is local... net saving in fuel blah blah blah. We need to fill the gap of "so most people must be using the lighter car when driving downtown. Therefore for A, which tells us that most families that drive long distances have two cars, that is the assumption we need which is that even people who have cars that drive long distances also have downtown lighter cars for local traffic.

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