Concept:A loss leader is a pricing strategy in which a product is sold at a price lower than its actual cost.Explanation:The seller intentionally accepts a loss on this particular product.Its purpose is to attract customers into the shop.Once inside, customers often buy other items that carry normal or higher profit margins.The overall profit from those additional purchases can offset the loss on the featured product.Therefore, this method is used as a promotional tool for increasing sales.This strategy is known as a loss leader.Answer:B. loss leader