Custom Foot Runs Six Retail Locations

Custom Foot runs six retail locations.At first glance none look any different from your basic old-fashioned shoe store,but the only shoes on hand are display models.There's no inventory for sale,and customers go home empty-handed - at least initially.Customers browse the store,mixing and matching design components such as style,colour,and leather type.About 100 display shoes provide style guidelines.Once you choose a shoe style,you select materials,colours,textures and a style of sole.The retailer sells 10,000 variations in women's shoes and 7,800 in men's.Custom Foot guarantees your shoes will be ready within three weeks.This is an example of:

A) mass customization.
B) synergy.
C) one product and multiple market segments.
D) price discrimination.