Discount is a discount appliance chain store that continually sells goods at a price below manufacturers’ suggested retail prices. A, B, and C, the three largest manufacturers of appliances, agree that unless Discount ceases its discount pricing, they will no longer sell to Discount. Discount refuses, and A, B, and C refuse to sell to Discount. Discount contends that A, B, and C are in violation of antitrust law. Explain whether Discount is correct.