It can be inferred from the passage that ______.

A．a fuel less dangerous than gasoline must be found
B．people should get rid of their cars and take the bus to work
C．one family should own just one car
D．public transportation should be improved so that people can become less dependent upon their cars for inner-city transportation

A、people are more interested in fast automobiles than in their health
B、Americans feel more closely tied to their cars than to their wives
C、kerosene-burning engines would pollute the environment more than gasoline-burning engines do
D、kerosene-burning cars would go faster than gasoline-powered cars