Which of the following actions is advisable to prevent blocking exits in small spaces?

Preventing blockages of exits in small spaces is crucial for ensuring safety during emergency situations where evacuation might be necessary. When considering the actions that can contribute to maintaining clear access to exits, avoiding any action that obstructs them is paramount.

The correct choice emphasizes the importance of keeping exits unobstructed; by avoiding blocking the only exit, individuals can ensure a clear and safe path for egress in case of an emergency. This awareness and proactive approach can make a significant difference in allowing timely evacuations and decreasing the risk of injury or panic during critical moments.

In contrast, remaining calm is certainly important in emergency situations, but it does not directly address the issue of exit blockage. Blocking the exit to control the situation is counterproductive and dangerous, as it prevents safe escape routes. Creating barriers with furniture can also lead to increased risk rather than providing protection, effectively complicating evacuation efforts instead of facilitating them. Thus, keeping exits clear is the most advisable approach.