单选题 A terrible traffic accident happened; people were saddened as they watched the ______ sight on TV.

【正确答案】 C
【答案解析】pathetic招人怜悯的，可悲的，符合句意；panic恐慌的，受惊的；patriotic爱国的；periodic定期的，周期的。句意：发生了一场可怕的交通事故。当人们在电视上看到惨状时都感到很悲哀。