Weight is considered during the periodic required inspection and servicing of（）. A:CO2 (carbon dioxide) fire extinguishers B:foam fire extinguishers C:water (stored pressure) fire extinguishers D:All of the above

Weight is considered during the periodic required inspection and servicing of（）.
A:CO₂ (carbon dioxide) fire extinguishers
B:foam fire extinguishers
C:water (stored pressure) fire extinguishers
D:All of the above

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