What type of systems are included in the category described in Article 9.01?

The correct answer highlights the comprehensive scope of systems covered under Article 9.01, which includes those utilized for fire detection, alarm, and extinguishment. This classification is essential for ensuring a holistic approach to fire safety.

Fire detection systems are critical for identifying smoke or heat, thereby providing early warnings to occupants and enabling timely responses to potential hazards. Alarm systems notify individuals about the presence of a fire, ensuring that evacuation procedures can be promptly initiated. Fire extinguishment systems, such as sprinklers or standpipes, actively engage in suppressing a fire once detected.

This combination ensures that all aspects of fire safety are managed together, facilitating an integrated response to fire hazards. By including detection, alarm, and extinguishment in one category, Article 9.01 reflects the interconnected nature of these systems, emphasizing the importance of a coordinated approach to fire safety in buildings.