Consumers' Union Measured the Gas Mileage Per Gallon of Thirty-Eight

Consumers' Union measured the gas mileage per gallon of thirty-eight 1998-99 model automobiles on a special test track. The following pie chart provides information about the country of manufacture of the cars that Consumers' Union used. Based on this pie chart, we may conclude that:

A) Japanese cars get significantly lower gas mileage than cars of other countries. We know this because their slice of the pie is at the bottom of the chart.
B) More than half of the cars in the study were from the United States.
C) Swedish cars get gas mileages that are between those of Japanese cars and U.S. cars.
D) Mercedes Benz, Audi, Porsche, and BMW represent approximately one-quarter of the cars tested.