Sara, a seventh grader, is eager to respond to questions in class, and regularly raises her hand to respond. However, in spite of her efforts, Mr. Edwards calls on one of her classmates each time. This process continues for the next two days with the same results. The third day Sara sits quietly, not raising her hand. Focusing on Sara's behavior, the case study best illustrates:
A) the negative reinforcement of a behavior.
B) the elimination of a behavior through removal punishment.
C) non-reinforcement resulting in extinction of a behavior.
D) the elimination of a behavior through classical conditioning.