The correct revision is..
"You're being dramatic," said Eliza.
"I don't think it's dramatic to say that you're going to fail the humanities class if you don't pass its final exam," replied her mother.
You're is short for you are. It's is short for it is. You use its for possession.
"<span>D. I have an old wagon painted bright red" is the only correct option. When working on these problems</span>, it's best to say the sentence out loud to determine what sounds right.
Hamlet is a prince of Denmark who is known as Hamlet. I can’t answer the second part because I don’t know what part of the play your at