According to ANSI Z133, what is a primary requirement for communication between a worker aloft and ground personnel before cutting and dropping limbs?
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A
The worker aloft must receive a verbal 'all clear' from every ground worker individually.
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B
A loud, audible signal, such as a whistle or air horn, must be used before each cut.
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C
A communication protocol must be established and understood by all crew members during the pre-job briefing.
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D
All communications must be conducted via two-way radio to ensure clarity and documentation.