Which of the Following Is Not a Requirement for a Successful

Which of the following is not a requirement for a successful price discrimination strategy?

A) A firm must have market power.
B) The firm must be able to prevent consumers who buy a product at a low price from reselling it to other consumers at a high price.
C) Managers must practice yield management.
D) Some consumers must have greater willingness to pay for the product than other consumers, and the firm must be able to know what prices consumers are willing to pay.