An F-04 Fireguard at an outdoor concert notices a large number of attendees gathering in a specific area near the stage, significantly increasing the crowd density and making movement difficult. What is the primary crowd management principle the Fireguard should be concerned with in this situation?
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A
Ensuring vendor compliance with fire codes.
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B
Preventing crowd crush and collapse by encouraging dispersal.
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C
Checking for valid event permits and documentation.
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D
Monitoring the performance for pyrotechnic safety.