Felicia Is Constantly Tardy to Class

Felicia is constantly tardy to class. Her teacher decides to tell Felicia that he will subtract five points for every day that she is tardy, hoping that Felicia will begin to come to class on time. Felicia continues to be late to class and is now in danger of failing the class based on lack of points. What is this an example of?

A) Negative reinforcer that was ineffective
B) Punishment that was effective
C) Punishment that was ineffective
D) Positive reinforcement that was effective