In the 1980s retail sales were dominated by large department stores. However, in the 1990s gains in sales were made by specialty stores because __________________.
a) the large department stores started moving out of shopping malls, and their new locations were not nearly as effective
b) customers got tired of trying to find sales clerks who would help them in the large department stores
c) the specialty stores always had donuts and coffee for their customers
d) consumer preferences change very rapidly, and the specialty stores can focus on a specific set of customers and respond to their unique needs
e) parking is more readily available at the specialty stores
Answer: d