After a sprinkler control valve is reopened following maintenance, what is the FIRST verification step before declaring the system restored?
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A
Remove the out-of-service tag and notify the monitoring company immediately
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B
Verify that the valve is fully open and water pressure throughout the system has returned to normal operating levels
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C
Check that the fire watch logbook entry has been completed
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D
Test all sprinkler heads individually to confirm they are functional