Which of the Following Is Not a Real-World Example of Third-Degree

Multiple Choice

Which of the following is not a real-world example of third-degree price discrimination?

A) A railroad charges more to haul 100 tons of coal than it does to haul 100 tons of grain.
B) An airline charges a lower price for a coach ticket purchased four weeks in advance than for the same type of ticket purchased three days in advance.
C) A movie theater charges senior citizens a cheaper price for movie tickets than it charges non-senior citizens for the same movie ticket.
D) Sam's Club® warehouses sell bulk quantities of macaroni and cheese for a cheaper per unit price than a grocery store, but the boxes are packaged together so that the customer must buy six boxes at a time.