We think it's wrong to single out any ___ of society for Aids testinga.partb.collectionc.mixtured.location

We think it's wrong to single out any ___ of society for Aids testinga.partb.collectionc.mixtured.location
We think it's wrong to single out any ___ of society for Aids testing
a.part
b.collection
c.mixture
d.location

We think it's wrong to single out any ___ of society for Aids testinga.partb.collectionc.mixtured.location
a.part
我们觉得这样做是错误的：把社会群体的任何一部分,分离出来来做AIDS 的检测.
collection [kə'lekʃən] n.收藏品；募捐；征收；采集,聚集
显然意思是不对的.
location [ləu'keiʃən] n.位置（形容词locational）；地点；外景拍摄场地
mixture ['mikstʃə] n.混合；混合物；混合剂
意思也不通.

We think it's wrong to single out 【any _part__ of society】 for Aids testing
我们认为单独分离出社会的一部分做AIDS检测是错误的。