原文的意思是: the government wants to count the birds killed by net fishing. currently, it relies upon the fishing industry to turn in the dead birds caught in the nets. This method cannot obtain an accurate figure, because the industry knows that if they turn in all the dead birds, the count of dead birds would be very high, then net fishing might be restricted as a result. Then the argument suggests a program for the government to do the accounting: the program would (in name)examine the toxin in the fish eaten by bird. It is hoped that by this way, the fishing industry would be willing to cooperate by turningin dead birds, since this program is in the interests of the fishing industry(they want to know if their fish is poisonous) answer (B) "The fishing industry could learn whether the fish it catches are contaminated with toxins if only a few of the seabirds killed by the nets were examined "-----after a few seabirds examined, the fishing industry would get what they want. Therefore, the government will not be expecting all the dead birds to be turned in. They would still be unable to have an accurate account It seems that your problem with this question is comprehension. practice will help you |