In one city, Biggies', a competing retail outlet, opens a store across the street from a Sam-Mart. A battle for business ensues. One of the tools both chains use in their fight for customers is advertising. Sam-Mart runs three different commercials that stress the point that it has very low prices. Biggies' runs three different commercials that stress the point that it has very friendly salespeople. Which one of the following practices are the two stores engaging in?
A. External positioning
B. Product polloning
C. Corporate advertising
D. Intemal positioning point