The spark of the First World War

The spark of the First World War was struck at Sarajevo on June 28, ____, when the Austrian Crown Prince Franz Ferdinand was assassinated by a Serbian nationalist.
A、1913
B、1914
C、1915
D、1916
【正确答案】：B
【题目解析】：本题考查第一次世界大战。根据课本P131，The spark of the First World War was struck at Sarajevo on June 28, 1914,可知第一次世界大战的火花是于1914年6月28日在萨拉热窝被点燃的。