Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-154
Section: Logical Reasoning
Topic: Assumption
Difficulty level: Hard

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Composting manager: Since we moved Phase II into covered bunkers, the growers who take our compost have reported a heavier first flush. Our own trial house, cropped on the same compost, has recorded no change. The trial house is cased shallower than any grower cases. So the bunkers have lifted the first flush, at least where the casing is deep.

Which one of the following is an assumption required by the manager's argument?

AThe trial house's having recorded no change of its own is owed to the shallower depth at which that house is cased, rather than to the covered bunkers doing nothing for a first flush

BMoving Phase II into covered bunkers raises the first flush of compost cased to the depth growers use, and by enough for a grower to notice without weighing a crop

CGrowers who take compost from yards that kept Phase II in open windrows report no heavier first flush than before

DThe second and third flushes from this yard's compost are no lighter than before the move, so what growers report is a gain in the crop, not the crop brought forward

EWhat the growers report tracks some change in the first flush of the crop itself, and not a change in what those growers count as a heavy first flush

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