Bertone's Office Supplies has large stores resembling warehouse environments, with racks stocked from floor to ceiling with different types of office supplies. Its assortment of office supplies is the largest in town, and its prices are low. Bertone's is a(n)
A. warehouse club.
B. extreme value retailer.
C. off-price retailer.
D. full-line discount retailer.
E. category specialist.
Answer: E. category specialist.