lsat 2 - 18

Snazzy

18.    Learning how to build a nest plays an important part in the breeding success of birds. For example, Dr. Snow has recorded the success of a number of blackbirds in several successive years. He finds that birds nesting for the first time are less successful in breeding than are older birds, and also less successful than they themselves are a year later. This cannot be a mere matter of size and strength, since blackbirds, like the great majority of birds, are fully grown when they leave the nest. It is difficult to avoid the conclusion that they benefit by their nesting experience.
Which one of the following, if true, would most weaken the argument?
(A) Blackbirds build better nests than other birds.
(B) The capacity of blackbirds to lay viable eggs increases with each successive trial during the first few years of reproduction.
(C) The breeding success of birds nesting for the second time is greater than that of birds nesting for the first time.
(D) Smaller and weaker blackbirds breed just as successfully as bigger and stronger blackbirds.
(E) Up to 25 percent of all birds are killed by predators before they start to nest.

In answer C, what r the eggs for? thanks

snow_mountain

C表明了breeding  have nothing to do with nesting because the breeding will always be more successful than the previous time.

Snazzy

Cool! Thanks, buddy.

lingxia

怎么大全上给出的这题答案是B啊？

Snazzy

ah??????  what did u say???

snow_mountain

C 其实是很好的提出了它因。