The electric light was the invention which allowed color to be projected with increased brightness and clarity.
The two years prior to World War I in the region of the Balkans saw the rising of Serbian nationalistic Groups. Later came the assassination of the Archduke Ferdinand in the Balkan City of Sarajevo, main cause of the war.
Congress lacked authority, they could not protect trade between foreign nations and other states.
19 years and that’s a proven fact
I’m not sure if this is correct but i think it is c but you might want to keep looking
