In 1911, with Regard to Resale Price Maintenance, the Supreme

In 1911, with regard to resale price maintenance, the Supreme Court pronounced a basic rule that:

A) retailers must agree to a producer or supplier's terms
B) once a producer or supplier sells a product to a retailer, it cannot control the price the retailer will charge consumers
C) a producer has complete control over the price a retailer will charge to consumers
D) a producer can control the price of some goods, like luxury items, but not others, like food, after selling them to a retailer
E) none of the other choices are correct