What is the process that involves directing people to go inside a building and seal it to avoid exposure to hazardous materials?

The correct choice involves the strategy known as in-place protection, which is used during hazardous material incidents when it may not be safe to evacuate people from an area. This method focuses on directing individuals to go indoors, ideally to a space that can be secured, minimizing exposure to external hazardous substances.

In-place protection is particularly useful during situations where outdoor conditions may present immediate danger, as sealing entrances (like windows and doors) can create a barrier between individuals and harmful contaminants. This approach allows emergency responders to manage the situation without needing to move large groups of people, which can lead to chaos and increase risk. It's essential in scenarios where evacuation might expose individuals to greater hazards.

Other options, such as evacuation, involve relocating individuals away from the danger zone entirely; public sheltering often pertains to larger scale community responses to safety, providing a designated area for safety; and crisis containment generally refers to the efforts to control and mitigate the hazardous situation itself but does not specifically focus on protecting individuals indoors. Thus, the emphasis on sealing a building to protect occupants aligns well with the concept of in-place protection in response to hazardous material emergencies.