The relevant standards stipulate that the voltage drop of the AC cable needs to be controlled within 3%. It is recommended that the voltage drop of the AC cable be controlled within ( ) when designing the UPS system.

The relevant standards stipulate that the voltage drop of the AC cable needs to be controlled within 3%. It is recommended that the voltage drop of the AC cable be controlled within ( ) when designing the UPS system.
A . 0.02
B . 0.05
C . 0.03
D . 0.01

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Answer: D