Your laptop power adapter states that it is “auto-switching.” What does this mean?
A) The power supply will charge the laptop battery and automatically stop when the battery is fully charged
B) The power supply will automatically use 110 volts or 220 volts depending on the power source
C) The power supply will provide both 110 volts and 220 volts simultaneously while the laptop is in use or charging
D) The power supply will automatically switch between AC and DC
E) The power adapter will switch languages depending on its geographical location
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