Which example best demonstrates a threat to biodiversity via habitat fragmentation?

A.
a fast-growing vine is introduced to a new area for decorative gardening and quickly spreads out of control due to its lack of natural predators

B.
a deciduous forest has roads built through the middle of it, leaving the rest of the forest intact

C.
a large rodent species is widely hunted for its soft, beautiful fur

D.
a coniferous forest is completely cleared (or cut down)