Which of the following best describes perfect price discrimination?

A. The ability to charge each customer the marginal cost of production.

B. The illegal practice of charging some groups of buyers one price and other groups of buyers a different price.

C. The ability to set a single price for a good based on buyer characteristics.

D. The ability to charge one group of buyers a different price than another group of buyers, even though the purchased goods have identical production costs.

E. The ability to charge different buyers their entire willingness to pay for goods with identical production costs.