Answer:
UPS is abbreviation of Uninterrupted power supply. It is a battery backup devices useful when major supply is interrupted due to any reason.
It performs the following functions:
1. It provides protection from power surges.
2. Smooth out noisy power sources
Both A and B are true. Check out this link: https://www.nerdwallet.com/blog/credit-cards/minimum-payment-credit-card/
I hope this helps!
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