The answer to your question is going to be d
Answer: A. Location and Scenery
The correct choice is A.) "Sometimes successful people," she argued, "are not aware of their success."
Choice B should be "Some people," Bill said, "think athletes are lucky."
Choice C should be Tracy said, "Usually, athletes are lonely without teammates."
Choice D should be He continued, "They can be green or blue."
The introduction will introduce the topic to the reader by stating what the topic is and giving some general background information.
The answer is C.