Wood smoke contains dangerous toxins that cause changes in human cells. Because wood smoke presents such a high health risk, legislation is needed to regulate the use of open-air fires and wood-burning stoves.
Which of the following, if true, provides the most support for the argument above?
(A)The amount of dangerous toxins contained in wood smoke is much less than the amount contained in an equal volume of automobile exhaust.
(B)Within the jurisdiction covered by the proposed legislation, most heating and cooking is done with oil or natural gas.
(C)Smoke produced by coal-burning stoves is significantly more toxic than smoke from wood- burning stoves.
(D) No significant beneficial effect on air quality would result if open-air fires were banned within the jurisdiction covered by the proposed legislation.
(E) In valleys where wood is used as the primary heating fuel, the concentration of smoke results、 in poor air quality.
题目分析：说烟尘有毒影响人类，wood smoke也会有烟尘，所以要理发管理那些发出wood smoke的事情。问支持，A说wood smoke里面的烟尘量少于汽车中的，没说过这个比较，干掉。B说现在供热和做饭都用天然气了，我跟你探讨的就不是天然气的问题，干掉。C说烧煤的炉子和烧木头的炉子哪个更有毒，这个比较也没有说过，干掉。D说如果禁止了open air fire的话其实没什么好处，那怎么支持？像个驳斥。E说用wood的地方，空气质量确实不好，和原文要禁止这个事情保持一致，留着。
