which kind of stores offers a wide selection in a few product categories and provides the service of product knowledge

department stores
specialty stores
convenience stores
supermarkets

Specialty stores typically offer a wide selection in a few product categories and provide the service of product knowledge.

The type of store that offers a wide selection in a few product categories and provides the service of product knowledge is called a specialty store.

The type of store that offers a wide selection in a few product categories and provides the service of product knowledge is a specialty store.

To determine this answer, we first need to understand the definitions of each type of store mentioned:

1. Department stores: Department stores offer a wide range of products across various categories, such as clothing, electronics, home goods, and more. They typically have multiple departments within the same store.

2. Specialty stores: Specialty stores, on the other hand, focus on selling a specific type of product or catering to a specific niche. They offer a narrower range of products compared to department stores but provide a more in-depth expertise and knowledge in the particular product category.

3. Convenience stores: Convenience stores are small retail outlets that offer a limited range of everyday items like snacks, beverages, toiletries, and basic groceries. They typically prioritize convenience and quick service.

4. Supermarkets: Supermarkets are larger retail stores that carry a wide variety of food and household products, including fresh produce, packaged goods, and other groceries.

Based on the given criteria of offering a wide selection in a few product categories and providing the service of product knowledge, specialty stores best fit the description. Specialty stores focus on a specific niche or product category and are known for their expertise and knowledge in that particular area. They offer a curated range of products within that specific category, ensuring a wide selection for customers seeking specialized products.

To confirm this answer, it is recommended to research different store types and their specific offerings, visit specialty stores in your area, or consult industry resources that provide detailed information on various types of retail stores.