D
A
C
C
So this answer would be C
here you go hope this helps
The reasons for the fall of the empire include military overreach, invasion by emboldened tribes of Huns and Visigoths from northern and Central Europe, inflation, corruption and political incompetence
Gunpowder was invented somewhere around 900 in China.
Well, that's basically it... :P
The Treaty of Versailles officially ended World War I and forced Germany to accept blame for the war.