Which of the following is included in containment/confinement strategies?

The correct answer is based on the fundamental principles of containment and confinement strategies employed during search and rescue operations. Blocking on roads or trails is a tactical measure used to restrict the movement of individuals within a certain area, thereby containing the situation and preventing further complications. This strategic action helps to control access to and from the affected area, ensuring that the search and rescue efforts can be executed more effectively.

In contrast, setting up camp at a safe distance focuses on the organization's safety and logistics but does not directly contribute to containing the subject of the search. Conducting aerial searches is more about locating individuals rather than restricting movement. Using drones for surveillance falls under reconnaissance rather than a containment method, as it primarily aids in gathering information rather than directly containing or confining the area or situation.

Overall, blocking on roads or trails is a proactive step in managing a situation, aiming to keep it contained while search and rescue operations continue.