It’s a major for Obama and his national security team, to fulfill the goal once voiced by Obama’s predecessor, George W. Bush, to bring to justice the mastermind （设计者）of the 9-11 attacks.A.anecdoteB.acplishmentC.negotiateD.campaign
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B解析本题考查名词。anecdote轶事；奇闻；acplishment成就；negotiate谈判；协商；campaign运动；活动。根据句意：它是奥巴马和他的国家安全小组的主语成就，故选B。