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605-655 Level|   Logical Flaw|            
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IMO D

Political theorist: The chief foundations of all governments are the legal system and the police force; and as there cannot be a good legal system where the police are not well paid. It follows that where the police are well paid there will be good legal system.

The reasoning in the argument is not sound because it fails to establish that:

(A) many governments with bad legal systems have poorly paid police forces

(B) bad governments with good legal systems must have poorly paid police forces

(C) a well-paid police force cannot be effective without a good legal system

(D) a well-paid police force is sufficient to guarantee a good legal system

(E) some bad governments have good legal systems


This is kind of an assumption question where we need to close any gaps in the argument. Argument states that where the police are well paid there will be good legal system. But it fails to consider other factors which might be essential for a good governing system. D states exactly this gap in the argument.



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Choice (D) is correct.
Why (C) is not right is because if you go through the question and put both the choices in front and then compare.
The reasoning in the argument is not sound because it fails to establish that a well-paid police force cannot be effective without a good legal system
effectiveness of the legal system is not something that is being talked about in the argument.It is just about what is leading to what ,between a good legal system and a well paid police officer.

The reasoning in the argument is not sound because it fails to establish that a well-paid police force is sufficient to guarantee a good legal
system.

for the argument in the question "where the police are well paid there will be good legal system". It is necessary that well paid police officers are sufficient for ensuring good law and order and hence good legal system. There can be other factors too,which along with well payed officers results in good legal system.
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Political theorist: The chief foundations of all governments are the legal system and the police force; and as there cannot be a good legal system where the police are not well paid. It follows that where the police are well paid there will be good legal system.

Type - Flaw
Boil it down - If police are not well paid , then there cannot be a good legal system .
But even if Police are well paid , it does not guarantee a good legal system

(A) many governments with bad legal systems have poorly paid police forces - Irrelevant

(B) bad governments with good legal systems must have poorly paid police forces - Irrelevant

(C) a well-paid police force cannot be effective without a good legal system - Incorrect

(D) a well-paid police force is sufficient to guarantee a good legal system - Correct

(E) some bad governments have good legal systems - Irrelevant
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premise: If -WP then -GLS {-WP=Not well paid police force, -GLS= Not good legal system}
Conclusion : If WP then GLS {WP=well paid police force, GLS= good legal system}

From premise we can infer that WP is necessary for GLS, but we can't say that WP is sufficient for GLS to happen. Hence this point is the logical gap!
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A,B,E are straight away ruled out as they are irrelevant.

Between C and D,

C can not be correct because there is no discussion about Effectiveness of the police force.

Hence, correct answer is D
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