A) Bluetooth is a good solution for short-distance connections.
B) Bluetooth is a good solution for wireless keyboards.
C) Bluetooth requires a clear line of sight.
D) The maximum distance between two devices that Bluetooth supports is 30 feet.
E) Bluetooth technology uses radio waves.
Correct Answer: C
Solution :[c] Bluetooth is a cable-replacement technology designed to wirelessly connect peripherals to desktop or laptop computer and to each other. Bluetooth devices do not need to be in direct sight of each other since they use radio waves. This feature makes it more convenient than infrared connections.
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