Question Type:
Necessary Assumption
Stimulus Breakdown:
Premise:
Only that which narrates can enable understanding.
Conclusion:
Still photography cannot enable us to understand the world.
(Note: Other statements in the stimulus could also be viewed as premises. However, the premise described above connects to the conclusion in a more direct way than those other statements, so it's a good strategy to primarily focus on this premise when evaluating the argument).
Answer Anticipation:
In order for this premise to support the conclusion, we need to assume that still photography does not narrate. If it does, then it could possibly enable understanding.
Correct answer:
C
Answer choice analysis:
(A) We aren't concerned about whether or not artists attempt to understand the world. The argument is about what actually enables us to understand the world. It's not necessary to assume that artists don't attempt to do so.
(B) It's useful to notice the shift from "still photography" in the stimulus to "on film" in this answer. "On film" can refer to movies. Also, it's not clear whether the functioning must be "captured on film" in order to be explained or connected to reality as described in the premises. There isn't a definite connection between something being "captured on film" and the premises or conclusion of the argument, so this answer is not something that's necessary to assume.
(C) This matches the assumption that we anticipated.
(D) This answer is about "art", not the specific art of still photography that is discussed in the conclusion. It's not necessary to make a general assumption about art, so this answer is too broad to be a necessary assumption.
(E) Like choice (D), this answer is overly broad. Images are mentioned in the stimulus, but it's not necessary to assume that images can't be properly explained. The stimulus describes how certain things must be explained, but it's not necessary to assume that anything mentioned in the stimulus cannot be properly explained at all.
Takeaway/Pattern:
When facing a Necessary Assumption question it's important to clearly identify the argument core, especially if the stimulus includes language that seems abstract or confusing. Clearly identifying the premises and conclusion can help us spot the gap in the argument and have a clearer idea of what to look for in the answer choices.
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