Answer:
C. sells products under its own label for a low price, and sells the virtually identical product with the same quality under a private label for a higher price.
Step-by-step explanation:
A noisy monopolist practices price discrimination by selling the same product to different customer groups at different prices. For example, the product may be sold under its own label for a low price and also sold under a different private label to another group of customers for a higher price. Usually the higher paying customers believe that they are purchasing a better quality product and are willing to buy it at a higher price.