Which statement describes what occupants should do if they are to remain in place?

When occupants are instructed to remain in place during a fire emergency, closing doors and blocking entry points to smoke is a critical action. This helps to create a barrier between the occupants and the smoke that can quickly fill a space and pose a serious risk to health and safety. By closing doors, the spread of smoke is minimized, which also helps in maintaining a safer environment within the room or area where the occupants are sheltering. Moreover, blocking any gaps (such as with towels or clothing) can further prevent smoke from infiltrating the space.

This strategy is part of a broader approach known as "defend in place," which is often preferred in high-rise buildings where evacuation may not be the safest or most practical option due to smoke, flames, or other hazards present on lower floors. By taking these precautions, occupants can significantly increase their chances of safety until help arrives or conditions improve.