What is the primary use of Class 2 standpipes?

Class 2 standpipes are specifically designed to provide a means of fire protection that can be readily accessed and utilized by the occupants of the building. These standpipes are typically equipped with hoses and nozzles that allow building occupants to engage the system quickly in the event of a fire. The intention behind Class 2 standpipes is to empower individuals within the building to take initial firefighting actions while waiting for the fire department to arrive.

In addition to being accessible for occupant use, these standpipes are generally situated in locations that are readily visible and easy to reach, further supporting the occupants in emergency situations. This makes option C the most fitting description of the primary use of Class 2 standpipes.