单选题 These intelligence officers tried a______of persuasion and force to get the information they wanted.
A. combination B. collaboration C. conviction D. confrontation

【正确答案】 A
【答案解析】[解析] 四个选项中A项combination n.“结合，联合”；B项collaboration n.“协作”；C项conviction n.“确信，宣告有罪”；D项confrontation n.“面对”。译文：情报官员利用说服和武力威胁以便得到他们需要的信息。