Anne Marie Made an Effort to Stop into the Walgreen's

Anne Marie made an effort to stop into the Walgreen's on her way home from work each Friday to pick up a gallon of milk since it was priced cheaper than her local grocery store.In this case,the milk is an example of Walgreens' use of ________.

A) stimulus pricing
B) leader pricing
C) follow-up pricing
D) price lining
E) odd pricing