Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-109
Section: Logical Reasoning
Topic: Flaw in the Reasoning
Difficulty level: Hard

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Potter: Only a firing in which the kiln is starved of air will turn our copper glaze red. Last month we closed the air damper for the whole firing, and every pot came out red. So closing the damper for the whole firing is all it takes to bring the glaze up red, and it should go into the standing instructions.

Which one of the following most accurately describes a flaw in the potter's reasoning?

AIt treats one firing whose pots came out red as showing that a closed damper is enough to bring the glaze up, when that firing may have owed its result to conditions the instruction would not fix.

BIt recommends a standing instruction without ruling out every other way a copper glaze might be brought up red.

CIt offers no support for the claim that only an air-starved firing will turn the glaze red, which the potter puts forward as though it were long agreed.

DIt concludes that a closed damper will bring the glaze up red without ever establishing that the damper is what starved the kiln of air last month.

EIt takes the damper's having been closed whenever the glaze came up red to show that an open damper would leave it short of red, which one month would hardly settle.

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