Because of recent seismic activity all along the Bleisner

[BTGmoderatorDC]

Because of recent seismic activity all along the Bleisner fault in the northern Pacific, environmental groups are concerned by offshore oil drilling and mineral exploration taking place in the immediate vicinity might exacerbate an already volatile situation.

A) environmental groups are concerned by offshore oil drilling and mineral exploration taking place

B) environmental groups are concerned that offshore oil drilling and mineral exploration taking place

C) a concern by environmental groups is that the offshore oil drilling and mineral exploring taking place

D) a concern of the environmental groups is the offshore oil drilling and mineral exploring taking place

E) environmental groups are concerned by the offshore oil drilling and mineral exploring taking place

OA B

Source: Princeton Review