What kind of layout does a burger restaurant typically use?

A burger restaurant, especially a fast-food one, focuses on producing standardized items (burgers, fries, drinks) in high volume. The preparation and cooking process is usually sequential, with ingredients moving from storage to cooking stations, assembly, and then to the customer. This setup aims for efficiency and speed.

• A. Process layout: This layout groups similar processes or functions together. For example, all frying stations in one area, all grilling stations in another. While there might be some functional grouping, the primary flow is product-oriented.
• B. Product layout: This layout arranges workstations in a sequence to produce a specific product or service. Work flows smoothly from one station to the next. This is characteristic of an assembly line. In a burger restaurant, the sequence of making a burger (bun, patty, toppings, wrap) often follows a linear flow, similar to a product layout.
• C. Fixed-layout: In this layout, the product remains in a fixed location, and resources are brought to it. This is used for very large, immobile projects like building a ship or a house. This is not applicable to a burger restaurant.
• D. Facility layout: This is a general term referring to the overall arrangement of physical resources within a facility. While a burger restaurant has a facility layout, "product layout" is a more specific and accurate description of the operational flow within the kitchen.

Given the sequential, high-volume production of standardized items, a burger restaurant's kitchen typically utilizes a product layout to ensure efficiency and speed in serving customers.

The final answer is $\boxed{\text{B. Product}}$