问题详情

All the following measure are required to be taken to contain the bird flu except ___________.
A)potentially dangerous population should stay isolated from other people
B)the antiviral drug doesn’t need to be distributed to a place four miles away
C)a large majority of the targeted population should get the antiviral drug
D)three weeks is the time limit to send the drug to the area exposed to virus请帮忙给出正确答案和分析，谢谢！