Effective street lighting has been proven to reduce crime. T

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Effective street lighting has been proven to reduce crime. The city of Shambolia improved its lighting especially in areas where crime levels were particularly high. No substantial change in the amount of criminal activity in those areas was reported. Improved lighting alone is not sufficient to combat crime.

In the argument given, the two portions in boldface play which of the following roles?

A) The first is a general opinion; the second opposes the idea expressed by this opinion.
B) The first is a conclusion; the second is a premise that contradicts this conclusion.
C) The first presents factual information; the second is a conclusion based on this information.
D) The first is a premise; the second concludes the argument by challenging this premise.
E) The first is a piece of evidence; the second makes an inference based on this evidence.

OA D

Source: Economist GMAT
Source: — Critical Reasoning |

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by deloitte247 » Sun Jun 16, 2019 1:20 pm

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Option A:- Incorrect
The statement captured in the first boldface is not existing as a general opinion. It is particular to this given case and requires a justification while the second boldface s not opposite of the first just because the conclusion in the second boldface did not justify the first statement.

Option B:- Incorrect
No conclusion can be made for this case since there is no foundation to sustain the argument.

Option C:- Incorrect
It is not a proven fact. Even after putting the situation under test, It failed.

Option D:- correct
The first statement is categorised as a premise( a proposition in which we expect a conclusion) while the second boldface is a challenging conclusion drawn from the eventual outcome of the situation.

Option E:- Incorrect
An evidence is a proof or confirmation which can never exist before a conclusion.