A Person Tries to Call Her Friend and There Is

Multiple Choice

A person tries to call her friend and there is no answer.She waits a little while and tries again,but there is still no answer.She continues to try for the rest of the day,but her friend never answers.Exasperated,she gives up.What is happening to the friend-calling behaviour?

A) It is being negatively reinforced.
B) It is being negatively punished.
C) It is being extinguished.
D) It is being positively punished.