The recent concert was probably not properly promoted. Wells, who is quite knowledgeable about the concert business, ...

MissBoss03 on May 18, 2016

I meant C, not B

rmkrutz@crimson.ua.edu on May 10, 2018

Can you please explain why the answer is C?

Mehran on May 22, 2018

Hi @MissBoss03, @rmkrutz@crimson.ua.edu, thanks for your posts.

The stimulus can be diagrammed as follows:
Conclusion: The recent concert was probably not properly promoted [PP].
Premise: W, who is quite knowledgeable about the concert business, was certain that it would sell out unless it was poorly promoted.
not SO ==> PP (if it did not sell out, then it was poorly promoted)
CP: not PP (ie, if properly promoted) ==> SO (sell out)
Premise 2: But the concert did not sell out [not SO]

Answer choice (C) can be diagrammed as follows:
Premise: My neighbor, who is an experienced home renovator, said the damage to the wall would not be noticeable if it were properly repaired.
PR ==> not N
(if properly repaired, then not noticeable)
CP: N ==> not PR
(if noticeable, then not properly repaired)
Premise: One can still notice the damage [N]
Conclusion: Thus, the repair to the wall probably was not properly done [not PR]

Answer choice (E) can be eliminated:
Premise: If tests properly conducted, would find lead in soil.
TPC ==> LS
Premise: the tests DID find lead in the soil [LS]
Conclusion: the tests were probably properly conducted [TPC]
*This is an incorrect reversal, which is a flaw not present in either the stimulus or the correct answer choice, (C)*

Hope this helps! Please let us know if you have any additional questions.