Which of the following would
 make a good thesis statement for
 a persuasive essay on the topic of
 teens needing to limit cell phone
 use?
 A. Today, about 88% of teenagers have their own
 cellphones.
 B. Cell phones began to change the everyday life
 of teenagers in the early 2000's.
 C. Do teens today spend too much time on their
 cellphones?
 D. Teens should put down their cellphones and
 have some non-digital face-to-face time every
 day.