A written instruction states: 'When two or more officers respond to a disturbance, the senior officer by rank assumes command. If officers are of equal rank, the officer with more years of service assumes command.' Two officers of the same rank respond — Officer A has 7 years of service and Officer B has 9 years. Who assumes command?
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A
Officer A, because they arrived first
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B
Officer B, because they have more years of service
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C
Both officers share command equally
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D
A supervisor must be called before command is assigned