单选题 His new theory has caused an enormous ______ throughout the civilized world.
A. solidarity B. sentiment C. sermon D. sensation

【正确答案】 D
【答案解析】[解析] (sensation轰动)。句意为：他的新理论在文明世界引起了很大的轰动。A．solidarity团结一致；B．sentiment情操；C．sermon布道。