问题详情

All of the following are mentioned in Paragraph 2 as contributing to how cars cause air pollution EXCEPT that______.

A．the brakes on cars give off asbestos bad for health

B．car combustion emits poisonous chemicals

C．catalytic converters also produces poisonous chemicals

D．tires give off small rubber particles harmful to health

请帮忙给出正确答案和分析，谢谢！