According to code, what is the minimum width of at least one egress door serving a residence?

The correct choice highlights that the minimum width of at least one egress door serving a residence is 32 inches. This specification is established in building codes to ensure that egress doors are wide enough to allow safe and efficient exit during emergencies, such as fires or other situations requiring rapid evacuation.

A width of 32 inches allows for easier passage, including for individuals who may be moving through the door with belongings or assisting others, such as children or the elderly. This width also accommodates the needs of individuals with disabilities, ensuring compliance with accessibility standards.

Wider doors, such as the 36-inch option, may indeed provide more space, but the code sets 32 inches as the minimum requirement to balance safety, accessibility, and practicality in residential construction. Other widths noted, like 30 inches, do not meet the code requirements for egress, which is why they are not appropriate for this context.