Alaska Security Guard Certification Practice

The answer D is correct because all of the provided options (stanchions, caution tape, and retractable posts) are effective ways/tools to control crowds. These options physically define and limit designated areas, which helps to guide people and prevent overcrowding. This ensures the safety of both the crowd and the event or location they are at. However, the other options (A, B, and C) are incorrect because choosing only one of these tools may not be enough to control a large crowd, and using all three options together is more effective in controlling crowds. It is important to use different methods and tools when managing and controlling crowds to ensure maximum safety and security.