Question

Which data supports an advertisement about an automobile’s increased fuel efficiency?

Answer 1

The correct answer should be a) Drive more than 500 miles on one tank of gas.

This is because fuel efficiency is a focal point in this answer, while D. deals with fuel efficiency, but that is not the main point of the advertisement. 

Answer 2

The answer is A: Drive more than 500 miles on one tank of gas.

 The data of sentence A shows specifically how far a car can go with one tank of gas. In sentence D, it's just mentioned that people are tired of the 20 mile per gallon efficiency. In sentence B, leg room is the space for the legs in the car. In sentence C, the information that more than 30 engineers worked in a car doesn't prove increased fuel efficiency.