In december 1805 the battle of against the combined forces of austria and russia became a symbol of napoleon's invincibility.

In December of 1805 the Battle of Austerlitz was fought and won by Napoleon. This battle was also known as the Battle of the Three Emperors (France- Napoleon, Russia- Tsar Alexander, and Austria- Holy Roman Emperor Francis II). Napoleon felt this was a symbol of him being invincible because he defeated two very large empires with forces larger than what he had. This also ended the Holy Roman Empire. 

That really sucks, but i don't know who your leader is, and i don't want to write that much

The correct answer is b