单选题 That was a man-made disaster that clearly______if the federal government, specifically the Federal Emergency Management Agency, had quickly marshaled the political resources to evacuate those without access to cars, instead of promoting on its Web site a faith-based charity that was clearly no match for the problem.
【正确答案】 A
【答案解析】解析：本题中的从句是虚拟条件句，从句的谓语是用过去完成时(had+过去分词)，这时主句谓语应用“should(would，could，might)+have+过去分词”。从句主要是说如果联邦政府迅速地疏散那些人，据此可推知主句应为人为的灾难就能够避免。空格处应为肯定、被动语态形式，因此A项正确。