At the Sunrise Bakery, which of the following menu items represents the company's attempt to price discriminate?

Which?

A. Customers receive a free doughnut with the purchase of a coffee.

B. A small coffee costs $1.50, whereas a large coffee costs $3.00.

C. An "early bird" special offers a discount for customers who arrive before 8:00 a.m.

D. The "bargain menu" highlights menu items that are available for $2.00 or less everyday.

E. Muffins cost $4.00, whereas doughnuts cost $2.00.