When it first opened stores across the United States, Bateman's, an office supply chain store, had the best product selection, the best service, and the lowest prices compared to other office supply chain stores. As a result, Bateman's captured a significant chunk of the market in the short run. Which of the following positioning strategies did Bateman's most likely use?
a. Differentiated positioning
b. Cost leadership positioning
c. Niche positioning
d. Premium positioning