PT 64 S1 Q8

According to the “bottom-up” theory of how ecosystemsare structured, ... ...

Which one of the following, if true, would provide evidence against the bottom-up theory?
(A) In an effort to build up the population of a rare species of monkey on Vahique Island, monkeys were bred in zoos and released into the wild. However, the effort failed because the trees on which the monkeys fed were also nearly extinct.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Oct 2011 LSAT (PT 64): Logical Reasoning A