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Re: Every photograph, because it involves the light rays that something em [#permalink]
I selected the answer as C which appears to be wrong. Can someone tell how?

Applying negation on option C: It is possible to determine the truthfulness of a photograph in any sense. which breaks the conclusion. Hence shouldnt C be right?
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Re: Every photograph, because it involves the light rays that something em [#permalink]
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Sanjeetgujrall wrote:
I selected the answer as C which appears to be wrong. Can someone tell how?

Applying negation on option C: It is possible to determine the truthfulness of a photograph in any sense. which breaks the conclusion. Hence shouldnt C be right?


Hi Sanjeetgujrall,

Let's analyze the question:

Every photograph, because it involves the light rays that something emits hitting film, must in some obvious sense be true. But because it could always have been made to show things differently than it does, it cannot express the whole truth and, in that sense, is false. Therefore, nothing can ever be definitively proved with a photograph.

Our conclusion is in dark blue, while our premise is in light blue. I think this is where you became confused. (C) talks about the premise, its truthfulness, but doesn't talk about how we can use the photo as proof. Does truthfulness = definitive proof? No. (A) does this. This is an assumption question, and you are correct to negate.
Here is a link to some more detailed explanations if this isn't clear: https://www.manhattanprep.com/lsat/foru ... t1310.html

Which one of the following is an assumption that would permit the conclusion above to be properly drawn?

(A) Whatever is false in the sense that it cannot express the whole truth cannot furnish definitive proof.
(C) It is not possible to determine the truthfulness of a photograph in any sense.

Does this help?
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Re: Every photograph, because it involves the light rays that something em [#permalink]
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Re: Every photograph, because it involves the light rays that something em [#permalink]
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