单选题 The ditry tricks played upon the Secretary of the State are ______ by the high ranking officials behind the scenes.

【正确答案】 C
【答案解析】(manipulate操纵，摆布)。句意为：在国务卿面前玩弄的鬼把戏由那些高官在幕后一手操纵。A．reckon计算，认为；B．meddle干涉，干预；D．signify表明。