I think A because he overtook many lands.
They put them in ghettos and tried to starve them at first, before the Final Solution
While there was much buildup pre-World War I, it is commonly understood that the assassination of Archduke Franz Ferdinand on 28 June 1914 in Sarajevo pushed the world to war as a result of a complex web of treaties and diplomatic obligations that quickly were triggered and resulted in sides being chosen.
Frank Sinatran, had "The Best is yet to come" etched onto his tombstone.
