Flynn Buys a Greasy Burger, Inc

Flynn buys a Greasy Burger, Inc., franchise. Greasy requires that its franchisees buy its products exclusively for every phase of their operations. Because Flynn wishes to buy less expensive products, he challenges the requirement. His best argument is probably that the requirement violates

A) ​the implied covenant of good faith and fair dealing.
B) ​the Federal Trade Commission's Franchise Rule.
C) ​federal antitrust laws.
D) ​the franchisor's marketing image.