Madeline very much wants to be a franchisee of BurgerBarn, a popular chain-style business operation. BurgerBarn shows Madeline the franchise contract, which includes the requirement that all franchisees obtain materials and supplies exclusively from BurgerBarn. Madeline objects to this provision. This contract term is:.
a. unenforceable because it violates antitrust laws.
b. enforceable because franchisees cannot negotiate contract terms with franchisors.
c. unenforceable because it violates the Federal Trade Commission's (FTC's) Franchise Rule.
d. enforceable because franchisors are permitted to require franchisees to obtain materials and supplies only from them