The court decisions in the Borden case clearly show that...

A. products of "like grade and quality" must be offered to all buyers at the same price-even if sold under different labels.

B. manufacturers who supply retailers with dealer brands cannot force the retailer to charge consumers the manufacturer's suggested list price.

C. price fixing is always illegal.

D. a manufacturer can charge different prices for different brands of physically identical products as long as the price differentials do not exceed the recognized consumer appeal of the higher-priced brands.

E. manufacturers cannot charge different prices for dealer brands and manufacturer brands.