The answer is A, the United Nations
Sharecroppers were free people and slaves weren't. Slaves didn't "rent" a piece of someone's land and work on it. They were forced to work on land since they were owned by the land owner.
No, Richard III is Richard III in William Shakespeare's play. He was known as a cruel and vicious man, capable of murdering children just so that he could get the throne. He is the subject of Shakespeare's play of the same name. Richard Topcliffe was a famous torturer, but he is not the subject of this play.
Om stuck on the same question i want to say that it's A, C, D, and maybe E. :)