can someone explain why D is correct and the other ACs are incorrect? Maybe its bc its ab economic theory, but i struggled with this one and ended on D only bc the others seemed less plausible.
When I do Necessary Assumption Question, I prefer to negate the Answer Choice and then test whether the argument becomes invalid. But this question confused me. Can anybody help me explain the question by negating and testing?
Not sure why AC A is the answer here. So what if two members of the household own cars? They could both own lighter vehicles. It says nothing about if they own a light vehicle and a heavy vehicle.
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 ...