The correct answer is option A) "Frederick II took Silesia". In the Austro-Prussian War or Seven Weeks' War, the leader of Prussia King Frederick the Great resulted victorious over Austria. This changed the map of Europe because the kingdom of Prussia gained control of extensive new lands in Silesia, including highly industrialized and densely populated areas.
He didn't want to run for a third time; hes lost credibility and his popularity ratings were low because he supported the failed Embargo Act of 1807.
D It would be after World War II.