Identify the type of anticompetitive behavior illustrated by each of the follow:
a. A university requires buyers of season tickets for its basketball games to buy season tickets for its football games as well.
b. Dairies that bid on contracts to supply milk to school districts collude to increases what they change.
c. The same individual serves on the boards of directors of General Motors and Ford.
d. A large retailer sells merchandise below cost in certain regions to drive competitors out of business.
e. A producer of carbonated soft drinks sells to a retailer only if the retailers agree not to buy from the producer's major competitor. 20 percent market share.