Gas fired live fire training structures apply to which of the following?

Gas fired live fire training structures are designed to simulate fire scenarios in a controlled environment, allowing trainees to practice their firefighting skills safely. These structures can be utilized in all interior spaces because they are engineered to provide realistic fire conditions and scenarios that mimic the variety of challenges firefighters face in actual fire situations.

Training in all interior spaces means that firefighters can get experience with different layouts, construction types, and fire behavior specific to various environments, including residential, commercial, and industrial settings. This broad application ensures that trainers can cover a wide range of potential fire incidents that firefighters may encounter in real life, making the training relevant and comprehensive.

Other options limit the applicability of these structures to specific areas or types of buildings, which would not provide the extensive training required across all potential firefighting situations.