【单选题】Individuals of a particular species of ground beetle are either light tan or dark brown. Light-tan beetles are predominant in habitats with light-colored sandy soils, and dark-brown beetles are predom...
A.
The reproductive success of beetles in habitats with sandy soils is greater than that of beetles in habitats with loam soils.
B.
Insectivorous birds prefer to eat light-tan beetles rather than dark-brown beetles.
C.
Ground beetles have higher rates of survival in habitats with loam soil.
D.
Insectivorous birds are predators of this species of ground beetle.