2. Which of the following are examples of price discrimination? Explain your answers.

a. A cell phone carrier offers unlimited calling on the weekends for all of its customers.

b. Tickets to the student section for all basketball games are $5.

c. A restaurant offers a 20% discount for customers who order dinner between 4 and 6 p.m.

d. A music store has a half-price sale on last year’s guitars.

e. A well-respected golf instructor charges each customer a fee just under the customer’s maximum willingness to pay for lessons.