Why not answer Choice D

Hi Ankita96, thanks for the question. The reason that B is correct is because it gives us a reason why the industry wouldn't need to turn in the bird carcasses. If they can learn what they need to learn by only giving a few carcasses, then they have no compelling reason to be open about the number of bird carcasses. D on the other hand, provides a good reason for the fishing industry to in fact, give the carcasses over for examination. They would know the toxins potentially present in the fish by knowing the toxins present in the sea birds. I hope this helps. Please let me know if you have any other questions.

Hey, Thanks a lot! This was really helpful!