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.
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?To identify the role played by the boldfaced portion of the passage, we can start by analyzing the flow of the passage.
The passage can be broken down as follows:
People generally notice and are concerned about only the most obvious public health problems. - general statement about what people generally do
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. - specific information on what people are aware of currently
Hence, there is unlikely to be a widespread, grassroots effort for new, more restrictive air pollution controls at this time. - conclusion that follows from the preceding statements
We can see that the flow of the argument is that the first two sentences about what people generally do and about the specifics of the current situation are used to support the conclusion stated by the third sentence about what people are likely to do "at this time."
(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.The boldface sentence indicates nothing about which threat is more widespread. It's about how people act, not about threats themselves.
Eliminate.
(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.This is exactly the role of the boldfaced sentence. It works together with the second sentence to support the final claim that is stated by the last sentence of the passage and is repeated by this choice.
Keep.
(C) It is used to explain the current public awareness of the severity of the problem of contaminated water.The first sentence states what generally people notice and are concerned with, in other words, what people tend to focus on, rather that explains how people became aware of how severe this specific problem of contaminated water is.
Eliminate.
(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.While the boldfaced sentence is followed by a sentence that mentions how dangerous ozone is for asthmatics, the boldfaced sentence does not support the sentence that follows it. Rather, the boldfaced portion supports the claim stated by the last sentence of the passage.
Eliminate.
(E) It is the main conclusion drawn in the argument.The boldfaced portion may feel like an opinion or conclusion, but it's not the main conclusion. Rather, the boldfaced portion provides support for the main conclusion stated by the last sentence of the passage.
Eliminate.
Correct answer: B