Read the following argument made by a speaker at a parentteacher conference: I'm a bank manager and parent of two high school students, so I know just how important financial literacy is for teenagers. College students today are graduating with an average student debt of $24,800, yet only 1 in 5 high schools nationwide are providing any type of financial education. It's time for Springville High to start offering its students financial education that is personal, practical, and principled. Which is the most effective characteristic of this argument? A. The repetition of the key words "students" and "education" B. The optimistic view of college education and its benefits C. The use of strong emotional appeals to persuade the audience D. The speaker identifying his or her credentials and authority