Officials at the California Department of Fish and Wildlife report that the rarity of the red abalone, a single-shelled edible mollusk
found only in the west coast region of North America, attracts hundreds of divers to San Francisco every year, which has increased the number of poachers and mobilized an active black market for the prized creature.
A. found only in the west coast region of North America, attracts hundreds of divers to San Francisco every year, which has increased the number of poachers and mobilized
B. found only in the west coast region of North America, attracts hundreds of divers to San Francisco every year, and it has increased the number of poachers, mobilizing
C. that is found only in the west coast region of North America and that attracts hundreds of divers to San Francisco every year, increasing the number of poachers and mobilizing
D. found only in the west coast region of North America and attracting hundreds of divers to San Francisco every year, having increased the number of poachers and mobilized
E. found only in the west coast region of North America, attracts hundreds of divers to San Francisco every year, increasing the number of poachers and mobilizing