Buildings used as a store, market, and other rooms, buildings, or structures used to display and sell merchandise are classified as:

• A. A place of assembly.
• B. A storage occupancy.
• C. A business occupancy.
• D. A mercantile occupancy.

Answer: (D)

Occupancy classifications are determined by the primary use of a building for fire safety purposes. Spaces used to display and sell merchandise to the public fall into mercantile occupancy. The description—stores, markets, and rooms or structures used to display and sell merchandise—matches this category, which governs how the space is designed, protected, and egressed to keep shoppers safe.

The other options don’t fit because a place of assembly is for gatherings of people (entertainment, worship, civic functions), storage occupancy is for storing goods and materials without public shopping, and business occupancy covers offices and professional workspaces rather than retail sales.