The Boffo Balloon Company makes helium balloons. Large balloons cost $13.00 a dozen, medium-sized balloons cost $11.00 a dozen, and small balloons cost $8.60 a dozen. About 60 percent of the company's sales are the smallest balloons, 30 percent are the medium, and large balloons constitute only
10 percent of sales. Customer order records include customer information, quantity ordered, and size. When you write a program to determine price based on size, for the most efficient decision, you should ask first whether the size is _________.
a. large
b. medium
c. small
d. It does not matter.