单选题 The history helps explain the vexing dispute between the European Union and the United States over the greatest threat to privacy yet conceived:the hundreds of millions of personal dossiers in computerized and networked databases.
【正确答案】 A
【答案解析】解析：A．troublesome麻烦的，令人讨厌的；B．astonishing可惊异的，惊人的；C．everlasting永恒的，耐用的；D．conflicting相冲突的，不一致的。