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1.        In the United States, trade unions encountered far more intense opposition against their struggle for social legitimacy than the organized labor movements of most other democratic nations.

(A) against their struggle for social legitimacy than

(B) in their struggle for social legitimacy than did

(C) against their struggle for social legitimacy as

(D) in their struggle for social legitimacy as did（B）

(E) when they struggled for social legitimacy than has

搜索过以前的帖子，还是没有看懂。这里比较的对象是trade unions和organized labor movements，还是their struggle for social legitimacy和the organized labor movements？这句话的中文意思是什么？