Final answer:
A manufacturer's retail store is an outlet owned and operated by the manufacturer to sell its own products. In the given list, Benetton and IKEA are such examples, while the others are retailers that sell multiple brands.
Step-by-step explanation:
In the context of the different types of middlemen, a manufacturer's retail store is an outlet that is owned and operated by the manufacturer. It sells the manufacturer's own products, often exclusively, to the end consumer. Benetton is an example of a manufacturer's retail store. Benetton is a clothing brand that has its own stores where it sells its products. Among the options provided, Benetton and IKEA stand out as examples as they manufacture and sell their own brand of goods. Benetton is known for producing its own clothing line which it sells in Benetton stores, and IKEA manufactures its own furniture and home goods for sale in IKEA stores. In contrast, Toys "R" Us, Walmart, and Costco are retailers that carry a variety of brands from different manufacturers.