One- and Two-Family Dwelling Unit is a building that contains not more than two dwelling units with independent cooking and bathroom facilities.

• A. Dwelling Unit
• B. One- and Two-Family Dwelling Unit
• C. Court
• D. Food Court

Answer: (B)

In NFPA 101, residential buildings are categorized by how many dwelling units they contain and whether those units have independent cooking and bathroom facilities. The term that exactly matches a building containing not more than two dwelling units with independent cooking and bathroom facilities is the One- and Two-Family Dwelling Unit. This label is used to distinguish small residential structures from larger multiunit buildings, and from spaces that aren’t residential dwellings at all.

Why this fits best: it specifies both the limit on the number of dwelling units (not more than two) and the requirement for independent facilities, which is the key detail in the definition.

The term Dwelling Unit, by contrast, generally describes a single living unit without specifying the total number of units in the building or the independence of facilities, so it doesn’t capture the stated building size constraint. Court and Food Court refer to nonresidential space and do not apply to the residential classification in this context.