In Dallas,Canon Printers Are Sold at Both Best Buy and Staples.Newspaper

In Dallas,Canon printers are sold at both Best Buy and Staples.Newspaper flyers from each store advertise a current sale price of $149 for the same Canon printer.Customers who purchase the printer at Best Buy will receive a free printer cartridge,while those who buy the printer from Staples will receive a free case of paper.Best Buy and Staples are most likely engaged in ________.

A) vertical integration
B) exclusive distribution
C) dual distribution competition
D) intra-brand price competition
E) inter-brand price competition