Which of the following is true about the current research regarding forest fragm

Which of the following is true about the current research regarding forest fragmentation?

A) Fragmented forests are the goal of conservation biologists who design wildlife preserves.
B) Fragmented forests support a lesser biodiversity because the forested-adapted species leave, and only the edge and open-field species can occupy fragmented forests.
C) The disturbance of timber extraction causes the species diversity to increase because of the new habitats created.
D) Harvesting timber that results in forest fragmentation results in less soil erosion.
E) Fragmented forests support a greater biodiversity because they result in the combination of forest-edge species and forest-interior species.