Final answer:
The category for lab, office, and bookstore is Service establishments.
Step-by-step explanation:
The category for lab, office, and bookstore falls under the Service establishments option.
This category refers to establishments that provide services to the public, such as offices, retail stores, and service-oriented facilities like labs. These establishments are focused on providing specific services rather than being learning institutions, public areas, or business zones.
Examples of service establishments include hospitals, restaurants, banks, and hotels.