Which answer choice is a sentence fragment? a) hamlet, the prince of denmark, was a little unsure whether his eyes were deceiving him or not. b) until we are able to confirm whether or not the radio waves came from outside of this solar system. c) kathy had only one dream in her life; she wanted to be a psychology teacher at a public high school. d) no one had ever understood the little boy's pain, and unless human resources got involved quickly, no one ever would. el