Logical reasoning PrepTest 110 · Section 2 · Question 16

Incorrect. The conclusion is about only resolution, so other aspects of a camera are out of scope.

Correct. Argument or Facts:
Argument

Valid or Flawed:
Flawed

Question Type:
Strengthen with Necessary Premise

Stimulus Summary:
Camera ads focus on resolution, but all modern lenses are so good that they project more info than can be captured in film, so resolution differences are irrelevant.

Answer Anticipation:
When there's a very strong statement in the conclusion of the argument, it's usually related to the flaw in some way. Here, the argument concludes that something is "irrelevant" which would require a lot to prove. It would have to be established that the irrelevant feature—here, differences in camera resolution—don't have any impact whatsoever on the outcome.

As such, we should expect the answer to eliminate a way in which these different resolutions could possibly impact the quality of images captured in practical photography. Since the only premise talks about film quality, it'll probably bring that into the conversation, as well. How it's going to do so is hard to anticipate, but that it will do so can serve as a strong enough basis to head to the answer choices.

Answer Explanation:
This answer rules out a way that different resolutions may actually play a role in determining photographic quality. If differences in resolution do compound the deficiencies of available film, then such resolutions are relevant for practical photography, and the argument falls apart. The argument relies on this to be true, so it's the correct answer.

Key Takeaway:
Strong language in a conclusion—especially absolutely strong statements—tend to be related to the flaw in that argument. Whenever you see a word like "irrelevant" pay attention and see if the premises are strong enough to support it!

Incorrect. The conclusion limits itself to discussing the irrelevance of lens resolution, so film processing is out of scope.

Incorrect. If anything, the negation of this answer aligns with the argument in stating that you don't need flawless technique in order to get the best resolution, as that implies for practical purposes differences in resolution won't matter.

Incorrect. The argument only relies on resolution being a factor up to a point, not that it and the film quality are the only important factors.