Suppose a firm offers quantity discounts or special promotional allowances only to favored distributors and the effect is to substantially lessen competition. This firm would be in violation of the a....

promotional allowances only to favored distributors

and the effect is to substantially lessen competition.

This firm would be in violation of the

a. Celler-Kefauver Act.

b. Sherman Antitrust Act.

c. Federal Trade Commission Act.

d. Clayton Act.

e. Robinson-Patman Act.