925. Where once the union had acquiesced to the prejudices of its English-speaking members by supporting the imposition of an alien tax on immigrant workers, after 1897 the United Mine Workers made a determined effort to enlist Italians and Slavs in its ranks. (A) Where once the union had acquiesced to the prejudices of its English-speaking members by supporting (B) Where once the union acquiesced to it English-speaking members’ prejudice for the support of (C) While once the union had acquiesced to the prejudices of its English-speaking members in support of (D) While once the union acquiesced to its English-speaking members’ prejudice in supporting (E) While once the union had acquiesced to the prejudices of its English-speaking members in its supporting of 请问这句话什么意思,为什么选择A?