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Gmatsaiyan
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how 3 is a as the option is extreme and even if pollution damagesd the painting it doeasnt rukle out possibiblity of damage from other souceas it could have been right if author hsas states onlly pollution
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3. In arguing that some of the restored work has already been darkened by pollution, which of the following assumptions did Scholar A make?

I. Nothing except pollution could have caused the darkening.
II. The darkening indicates that irreversible damage has been done.
III. The atmospheric pollutants are more abundant now than they were before the restoration.

A. I only
B. I and II
C. II and III
D. I, II and III
E. None of the above

Scholar A argues that, because the protective animal-glue layers were removed, atmospheric pollutants now have direct access to the frescoes. Then Scholar A points to the recent darkening as evidence that pollution has already affected the restored work. The key assumption is that this darkening was caused by pollution, not by some other source.

I. Nothing except pollution could have caused the darkening.

This is required in the intended sense. Scholar A is attributing the darkening to pollution. If the darkening could instead have been caused by some other factor, then Scholar A’s claim that pollution has already darkened the work would not be supported.

II. The darkening indicates that irreversible damage has been done.

This is not required. Scholar A only says the work has already darkened because of pollution. The argument does not need to assume that the damage is permanent.

III. The atmospheric pollutants are more abundant now than they were before the restoration.

This is not required. Scholar A’s point is that the frescoes are now less protected because the animal-glue layers are gone. Even the same amount of pollution could be more harmful if it now has direct access to the frescoes.

So only I is assumed.

Answer: (A)
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Hi AwareBirdh,

Your instinct that "Nothing except pollution could have caused the darkening" sounds extreme is completely fair. But here's the twist: on assumption questions, extreme-sounding statements are often exactly right, because an assumption is the unstated piece the argument silently needs. The fact that Scholar A didn't write "only pollution" is not evidence against the assumption - it's the whole reason it qualifies as one.

Reframe what an assumption is

It's not what the author said; it's what the author needs to be true for the conclusion to hold. So "extreme" is not a disqualifier here - necessity is.

Run RN I through the denial test

Scholar A's reasoning is: glue is gone, pollutants now reach the frescoes, we see darkening, therefore pollution caused it. Now deny RN I: something other than pollution could have caused the darkening. The moment you allow another cause, the observed darkening no longer pins the blame on pollution - the argument falls apart. So RN I is necessary. That's exactly what you meant by "only pollution," just phrased as an assumption.

Why RN II and III fail the same test

Deny RN II (the damage is reversible) - Scholar A's claim that pollution is causing darkening still stands; reversibility was never the point. Deny RN III (pollution levels are unchanged) - the argument still works, because Scholar A's mechanism is the lost barrier (animal glue), not increased pollution. Neither is needed.

Quick stand-in to lock the move

"It rained last night, so the ground is wet." What is the speaker assuming? That nothing else made the ground wet (no sprinkler, no spill). It sounds extreme - but deny it and the conclusion breaks. Same shape as Q3.

Answer: A

AwareBirdh
how 3 is a as the option is extreme and even if pollution damagesd the painting it doeasnt rukle out possibiblity of damage from other souceas it could have been right if author hsas states onlly pollution
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