Which One of the Following Examples Best Illustrates a Student

Which one of the following examples best illustrates a student who has had mediation training?

A) Saul makes a check mark on an index card every time he speaks out in class without permission.At the end of each hour, he counts the number of check marks he has recorded.
B) Melinda works diligently at her math homework, thinking carefully about how to do each problem and then taking it one step at a time.
C) When Soo studies her textbook, she stops to think about the things she already knows about the topic and tries to relate what she reads to her prior knowledge.
D) When he sees two of his classmates arguing at lunch, Abbott joins them and encourages each of them to view the conflict from the other's perspective.