Two European empires were dismantled.
As much as C. has a partiality towards the cause of The Great War, it's most likely answer B.
The Germans declared war on the Russian Empire, guaranteed the independence of Serbia, because of their alliance backing Austria, and Serbia which the Austrians declared war on as a result of the Serbian citizen who shot the heir to the throne.
The rest of Europe's involvement was a chain reaction of countries coming to the aid of another. France with defending Russia, Britain defending Belgium, etc.
It maintains the oral tradition of communities.
The reason why <span>the turmoil of the French revolutionary years resulted in a conservative European reaction was because the voices of "liberty" during the Revolution quickly devolved into movements of terror, which did away with practically all of the liberty that was gained. </span>
