A growing taste for shark steaks and shark-fin ... ...

It can be inferred from the passage that

  I.   research efforts on cancer will be hindered if shark populations are threatened.
  II.   U.S. quotas on shark fishing will have limited effectiveness in protecting certain species.
  III.   some practices of Chinese chefs have angered environmentalists.
(A) I only
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Press: Set E - RC Practice