Intern
Joined: 06 Feb 2020
Posts: 25
Location: Armenia
Concentration: Finance, General Management
GPA: 2.91
WE:Analyst (Accounting)
Re: Landfills, which store much of this country's garbage, still face sign
[#permalink]
26 May 2023, 02:00
Landfills, which store much of this country's garbage, still face significant lead-pollution risks is the conclusion.
The whole game of the argument is to show that the garbage is supposed to be tested for containing of lead but this test is often ineffective.
Hence, the argument is confirmed. The word however initiating the boldface part hints that it introduces a counter premise, which is in fact positive for our main conclusion. Answers A, B and C distort the role of the sentence.
As there are no hidden conclusions in the bold sentence A is eliminated.
B says that there is an objection that goes against the argument, but we know that it goes against the premises rather than the conclusion.
C states that the sentence approves the evidences, while there is no evidence presented.
D says that the highlighted sentence supports the argument. The argument is talking about lead pollution risks. The highlighted sentence states that the lead tests often miss high lead concentrations, meaning that the lead garbage is exposed as a regular one, leading to higher contamination.
E says that the boldface is an explanation that clarifies the argument. This statement to be true we should have a paradox in the stimulus. The first sentence tells us that landfills are under jeopardy of lead contamination. The second and the third sentences talk about measurements that the garbage is supposed to undergo to be classified to avoid its exposure in wrong areas. Finally, the last sentence provides a fact telling us that the lead is often measured incorrectly using the most common tests. The information that the most common test are inaccurate cannot cancel the fact that the garbage is supposed to be checked for possible contaminants, as there are uncommon tests, which may reveal the result accurately.
The right answer is D. However, this is a tough question due to its ambiguous answer choices and tricky wording of the sentence. I will risk to guess that this is not a GMAT question, at least of medium difficulty.