Q- Last week local shrimpers held a news conference to take some credit for the resurgence of the rare Kemp's ridley turtle, saying that their compliance with laws requiring that turtle-excluder devices be on shrimp nets protect adult sea turtles.

A-requiring that turtle-excluder devices be on shrimp nets protect

B- requiring turtle-excluder devices on shrimp nets is protecting

C- that require turtle-excluder devices on shrimp nets protect

D- to require turtle-excluder devices on shrimp nets are protecting

E- to require turtle-excluder devices on shrimp nets is protecting

frnds , want to see your comments on this....Why can't "C" be correct?