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This year, pollution levels, particularly in downtown areas, reached s
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05 Mar 2026, 02:26
05 Mar 2026, 02:26
Expert Reply
Question 1
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Question Stats:
80% (01:44) correct
20% (02:03) wrong based on 15 sessions
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This year, pollution levels, particularly in downtown areas, reached such alarming levels that city councils in several states established temporary exhaust control points on the highways feeding inner city areas. This led to an immediate drop in the number of people suffering from asthma. As a result, several councils have decided to make the exhaust control points a permanent feature.
The decision to make the exhaust control points a permanent feature on highways is based on which of the following assumptions?
(A) All highways pass through the outskirts of downtown areas, which are uninhabitable areas.
(B) Prolonged exposure to pollution causes asthma.
(C) A variation of Asian flu prevalent in downtown areas has the same symptoms as acute asthma.
(D) A newly available mask does not reduce the risk of acquiring asthma from pollution.
(E) The company running the exhaust checks is paid according to the number of defective vehicles detected.
The decision to make the exhaust control points a permanent feature on highways is based on which of the following assumptions?
(A) All highways pass through the outskirts of downtown areas, which are uninhabitable areas.
(B) Prolonged exposure to pollution causes asthma.
(C) A variation of Asian flu prevalent in downtown areas has the same symptoms as acute asthma.
(D) A newly available mask does not reduce the risk of acquiring asthma from pollution.
(E) The company running the exhaust checks is paid according to the number of defective vehicles detected.
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Re: This year, pollution levels, particularly in downtown areas, reached s
[#permalink]
17 Mar 2026, 08:31
17 Mar 2026, 08:31
1
Expert Reply
Explanation
-Exhaust control points were introduced
-Asthma cases immediately dropped
-Therefore, make the control points permanent
This reasoning assumes that the drop in asthma was caused by reduced pollution due to the exhaust controls, and that pollution is actually responsible for asthma cases.
(A): Irrelevant to the causal link.
(B): Prolonged exposure to pollution causes asthma: This directly supports the causal assumption that reducing pollution will reduce asthma. Without this, the conclusion does not hold.
(C): Introduces an alternative explanation (flu), which would weaken the argument.
(D): Talks about masks, irrelevant.
(E): About company incentives, irrelevant.
The key assumption is that pollution leads to asthma, so reducing pollution reduces asthma.
Correct answer: (B)
-Exhaust control points were introduced
-Asthma cases immediately dropped
-Therefore, make the control points permanent
This reasoning assumes that the drop in asthma was caused by reduced pollution due to the exhaust controls, and that pollution is actually responsible for asthma cases.
(A): Irrelevant to the causal link.
(B): Prolonged exposure to pollution causes asthma: This directly supports the causal assumption that reducing pollution will reduce asthma. Without this, the conclusion does not hold.
(C): Introduces an alternative explanation (flu), which would weaken the argument.
(D): Talks about masks, irrelevant.
(E): About company incentives, irrelevant.
The key assumption is that pollution leads to asthma, so reducing pollution reduces asthma.
Correct answer: (B)
gmatclubot
Re: This year, pollution levels, particularly in downtown areas, reached s [#permalink]
17 Mar 2026, 08:31
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