Jane, John, Kathy, and Mike Are All Students in Dr

Jane, John, Kathy, and Mike are all students in Dr. Miller's Chemistry class. Which of Dr. Miller's students is exhibiting the MOST respectful behavior?

A) Jane, who is running late to class and therefore texting a classmate, Aaron, to find out what the class is studying so she doesn't miss out on any of the topics
B) John, who is emailing his coworkers to try to find someone to cover his shift at work that afternoon so he can participate in a study group with his Chemistry classmates
C) Kathy, who shut off her phone when she arrived for class so that she wouldn't be tempted to check her messages and could give Dr. Miller her full attention
D) Mike, who set his phone to send him updates about the score of a sports game but set his notifications to vibrate to avoid disrupting others