Question ID:PT91 S2 Q12 Passage:Professor Shanaz:  People generally notice and are concerned about only the most obvious public health problems. Although there is indisputable evidence that ozone, an air pollutant, can be dangerous for severe asthmatics even if found in levels much lower than maximum levels permitted by law, most people are currently well aware that contaminated water presents a much more widespread threat to our community. Hence, there is unlikely to be a widespread, grassroots effort for new, more restrictive air pollution controls at this time. Stem:Which one of the following most accurately describes the role played in Professor Shanaz's argument by the claim that people generally notice and are concerned about only the most obvious public health problems? Correct Answer Choice:BChoice A:It is a premise offered in support of the claim that contaminated water currently presents a much more widespread threat to the community than does ozone. Choice B:It is a premise offered in support of the claim that there is unlikely to be a widespread, grassroots effort for new, more restrictive air pollution controls at this time. Choice C:It is used to explain the current public awareness of the severity of the problem of contaminated water. Choice D:It is presented as indisputable evidence that ozone can be dangerous for severe asthmatics even if found in levels much lower than maximum levels permitted by law. Choice E:It is the main conclusion drawn in the argument.