The correct answer is Austria-Hungary
Nationalism started rising after numerous years of wars during the 19th century. Austria-Hungary believed that it had the right to be the great empire that it used to be and that it partially was at the moment. That's why things like world war 1 happened since countries wanted to establish themselves as great.
Neither. He was a priest. He was the father of John the Baptist.
The founder of communist ideology was Karl Marx.
The theory of communism was advanced by Vladimir Lenin.
The answer is A, taxes were a big problem in both revolutions