The correct answer is A. UPS.
A UPS (Uninterruptible Power Supply) is a device that provides emergency power to a computer or other electronic equipment during a power outage. This can prevent data corruption and other damage to your equipment.
A UPS works by storing a charge of electricity in a battery. When the power goes out, the UPS uses this stored energy to power your equipment for a limited amount of time. This gives you enough time to save your work and shut down your computer properly.
There are many different types and sizes of UPSs available, so it is important to choose one that is right for your needs. You will need to consider the amount of power your equipment uses and how long you need the UPS
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