During a peak sales period, the store's point-of-sale (POS) system suddenly goes offline, preventing any card transactions. What is the most effective immediate action to manage the situation?
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A
Apologize to customers in line, inform them of the issue, and suggest they use the in-store ATM or come back later.
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B
Politely inform waiting customers about the technical difficulty, notify the manager-on-duty immediately, and ask if there is a manual or backup procedure to follow.
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C
Immediately try to reboot the entire system yourself without notifying management.
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D
Announce loudly that the store is closed until the system is fixed.