Logical reasoning PrepTest 123 · Section 2 · Question 2

Incorrect. The stimulus features two conditional premises, whereas this answer choice features one conditional and one "some" statement. That throws the structure and flaw off, so this answer can be eliminated.

Correct. This answer features two conditionals with opposing outcomes, a mixture of the two sufficient conditions, and an "averaging" of the outcomes. It matches up perfectly with the stimulus, so this is the correct answer.

Incorrect. While this answer choice does feature two conditionals with opposing outcomes, there are two important differences. First, the stimulus features dogs that are all a mix of Lab and St. Bernard, whereas this answer talks about the members as a group attending these schools, but it doesn't say that any of them attend both, so we don't know there's a mix. Second, the conclusion doesn't "average" the outcome, but rather says that some have each outcome. This argument is also valid.

Incorrect. The conclusion here doesn't take the average of two thing; instead, it states Bob knows two things. Additionally, since Bob meets both sufficient conditions, this is a valid argument.

Incorrect. This answer choice features reversed logic—there's no guarantee that all very well made dresses belong to Kenisha, and very badly made dresses belong to Connie. It's possible this closet is for two completely separate people. Since this answer features a different flaw, it's not correct.