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During the month of May, crabs arrive on Delaware's beaches

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Re: During the month of May, crabs arrive on Delaware's beaches [#permalink]

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New post 18 Jan 2018, 05:12
IMO OA is E
Below is my reasoning.

A. No other food available to the birds on Delaware's beaches is as nutritious and accessible as are crab eggs.
-> Out of scope. We do not need to think about nutrition of food.
B. The decline in the number of crabs on Delaware's beaches is due to the harvesting of crabs by humans.
-> Out of scope. We do not need to think about harvesting of crabs by human
C. There are more crabs on Delaware's beaches than in any other area that the migrating birds pass through.
-> Not weeken. I think it can be strengthen.
D. The crabs do not conceal their eggs.
-> Nothing.
E. The earlier in the season the shorebirds complete their migration, the more likely they are to breed successfully.
-> Correct
The last sentence of passage argues that there is no threat to population.
However, if E is correct, there would be serious threat to their population. So E is correct.
Re: During the month of May, crabs arrive on Delaware's beaches   [#permalink] 18 Jan 2018, 05:12
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During the month of May, crabs arrive on Delaware's beaches

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