Sufficient & Necessary Questions - - Question 45
Two things are true of all immoral actions. First, if they are performed in public, they offend public sensibilities....
Replies
Mehran March 8, 2018
@erojas remember this is a Cannot Be True question so the incorrect answer choices "could be true".(B) states, "Immoral actions are wrong solely by virtue of being accompanied by feelings of guilt."
Notice we have no information as to whether immoral actions are wrong or why they are wrong.
The only information set forth in the stimulus regarding immoral actions is (1) "if they are performed in public, they offend public sensibilities" and (2) "they are accompanied by feelings of guilt."
Therefore, (B) doesn't conflict with any information in the stimulus so (B) could be true and it would be eliminated as an option.
Hope that helps! Please let us know if you have any other questions.
Alex June 1, 2018
@naz @mehran answer choice E is actually must be true?
Mehran June 2, 2018
Hey @Alex, thanks for your post.You can diagram the stimulus, as follows:
"Two things are true of all immoral actions. First, if they are performed in public, they offend public sensibilities."
Notice there are two sufficient conditions here: (1) immoral actions (2) if performed in public
So you would diagram this as:
IA and PP ==> OPS
"Second, they are accompanied by feelings of guilt."
IA ==> AFG
The question stem asks for the answer that "must be false," or "cannot be true." This means that the four incorrect answers are "not necessarily false" or "could be true."
Answer choice (E) is "Every action performed in public that is accompanied by feelings of guilt is immoral."
You could diagram this as:
PP and AFG ==> IA
This does not qualify as "must be true" based on the statements in the stimulus. None of the given premises (or their contrapositives or transitives) yield this statement. That said, this statement does not contradict any of the given premises or information, so it "could be true." For a "must be false" question, therefore, this is a wrong answer.
Hope this helps! Please let us know if you have any additional questions.