For years the beautiful Renaissance building in Palitito have been damaged by exhaust from the many tour buses that come to the city. There has been little parking space, so most buses have idled at the curb during each stop on their tour, and idling produces as much exhust as driving. The city has now provided parking that accomodate a third of the tour buses, so demage to Palitito's buildings from the buses' exhaust will diminish significantly. Which of the following, if true, most strongly supports the argument? A) The exhaust from Palitito's few automobiles is not significantly threat to Palitito's buildings. B) Palitito's Renaissance buildings are not threatened by pollution other than engine exhaust. C) Tour buses typically spend less than one quater of the time they are in Palitito transporting passengers from one site to another. D) More tourists come to Palitito by tour bus than by any other single means of transportation. E) Some of the tour buses that are unable to find parking driving around Parlitito while their passengers are visiting a site. Answer: C 哪位高人可以解释一下啊？谢谢啦。。。 | 
