The correct answer is:
Allied: the United Kingdom; Central Powers: Germany.
The Allies had a lot more potential wealth to be spent on WW1. It has been estimated that the Allies spent $147 billion on the war while the Central Powers invested only $61 billion. Britain and its Empire on the Allies side spent $47 billion while Germany spent $45 billion.
1.) A and D
2. No attachment yet
3.C (By converting to Christianity, they embraced an entirely different belief that changed their cultures and morals and values)
4.B (There was a heavy loss of lives during the massacre).
The high unemployment rate, their strict religious guidelines, their economy, violence, and their views on slavery.