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Inference problem-LSAT

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Inference problem-LSAT

by paes » Sun Sep 05, 2010 5:25 pm
Besides laying eggs in her own nest, any female wood duck will lay an egg in the nest of another female wood duck if she sees the other duck leaving her nest. Under natural nesting conditions, this parasitic behavior is relatively rare because the ducks' nests are well hidden.However, when people put up nesting boxes to help the ducks breed, they actually undercut the ducks'reproductive efforts. These nesting boxes become so crowded with extra eggs that few, if any, of the eggs in those boxes hatch.

The statements above, if true, most strongly support which one of the following?

(A) Female wood ducks will establish nests in nest boxes only when natural nesting sites are not available.

(B) Nesting female wood ducks who often see other female wood ducks are the most successful in their breeding efforts.

(C) The nesting boxes for wood ducks have less space for eggs than do natural nesting sites.

(D) The nesting boxes would be more effective in helping wood ducks breed if they were less visible to other wood ducks than they currently are.

(E) Nesting boxes are needed to supplement the natural nesting sites of wood ducks because of the destruction of much of the ducks' habitat.

OA Later
Source LSAT

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by kamalsinghy » Sun Sep 05, 2010 6:04 pm
Ans should be D.

Two premises are mentioned: a. under natural condition b. under human provided nesting condition
D is including both these conditions and drawing the conclusion.

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by debmalya_dutta » Sun Sep 05, 2010 7:18 pm
my pick is D
@Deb

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by vishalj » Sun Sep 05, 2010 7:32 pm
IMO, D


(A) Female wood ducks will establish nests in nest boxes only when natural nesting sites are not available. - Could be true but we don't know

(B) Nesting female wood ducks who often see other female wood ducks are the most successful in their breeding efforts. - New information....
(C) The nesting boxes for wood ducks have less space for eggs than do natural nesting sites. - Could be but we don't know

(D) The nesting boxes would be more effective in helping wood ducks breed if they were less visible to other wood ducks than they currently are.

(E) Nesting boxes are needed to supplement the natural nesting sites of wood ducks because of the destruction of much of the ducks' habitat. - New information..stay away

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by paes » Mon Sep 06, 2010 4:25 am
OA is D guys.

But I am unable to understand how E is supported from the argument.
Can somebody explain it.

thanks