A major chemical spill occurred five years ago at Baker's Beach, the world's sole nesting ground for Merrick sea turtles, and prevented nearly all the eggs laid that year from hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker's Beach has actually increased somewhat since five years ago. Clearly, environmentalists' prediction that the world's Merrick population would decline as a result of the spill has proven unfounded.
Which of the following, if true, most seriously undermines the argument offered in refutation of the environmentalists' prediction?
这题说是要weaken对环保学家的反对意见，也就是支持环保学家的意见。环保学家说，是化学泄漏导致海龟population减少，所以正确答案是增大population减少的可能性。
选项分析：
A 发生泄漏的时候没有海龟也没有龟蛋，根本就没法说明海龟population减少，要的话也是说明population会增加，因为蛋的孵化没受影响，所以从这一层来讲会支持反对者；
B 正确。母乌龟在10岁的时候才会回到改地hatch，但是泄漏是五年前开始的，所以泄漏对hatch数量的影响至少要到5年后才能体现出来。现在hatch的是没有收到泄漏影响的乌龟，所以数量没减少，因此削弱了化学泄漏对乌龟数量无影响的结论。
C 正常情况下的情况，无关；
D 天敌会减少，这会更利于海龟population增加；
E 说的是导致这海滩海龟减少的原因是那些 environmental group，无关；
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