What type of sprinkler system must assembly occupancies with an occupant load of more than 300 be protected by?

In assembly occupancies with an occupant load of more than 300, an approved supervised sprinkler system is required because it enhances the safety and effectiveness of fire protection. Such systems are monitored for performance and are capable of alerting the fire department automatically in the event of an activation. This level of supervision is crucial in large gathering spaces, where quick identification of a fire and rapid response can save lives and minimize property damage.

Supervised systems include features that ensure the sprinklers are operational and able to respond effectively to a fire. They are regularly monitored for functionality, meaning that if there is a failure, it can be quickly identified and addressed. This is particularly important in large assembly areas where the potential for a fire to escalate due to the number of occupants is significantly higher.

In contrast, the other options do not meet the necessary standards for protecting larger assembly occupancies. Non-supervised systems lack the monitoring component, which could result in undetected failures. An automatic fire extinguisher system does not provide the widespread coverage needed in such settings, and a manual sprinkler system would place the responsibility for activation on occupants, which is not reliable in emergency situations. Having a supervised sprinkler system ensures that proactive measures are in place for fire safety in large gatherings, aligning with