Charles Darwin noted specific mechanisms of competition among species occupying adjacent territories. One of the specific mechanism of inter-space competition is resource depletion. This means that one of the competing species harvests resources more efficiently and lowers resource levels to the point where it can still survive but its competitor cannot.

If the above statements are true which of the following is most likely to give species X an advantage over competing species Y .

A)Their shared habitat is such that only species Y is not the prey of another species.
B)Territorial fights are frequent among members of species X but occur rarely between species X & Y.
C)Member of species X are more uniform in their abilities to harvest resources than are member of species Y
D)Resources needed by both species are harvested more efficiently by species X than by species Y.
E)X & Y together deplete the resources required by a common advisory.

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