QWhat is the difference between Blue-tooth and Wi-Fi devices?

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• A Bluetooth uses 2.4 GHz radio frequency band, whereas Wi-Fi can use 2.4 GHz or 5 GHz frequency band ✔ ✖
• B Bluetooth is used for Wireless Local Area Networks (WLAN) only, whereas Wi-Fi is used for wireless wide area networks (WWAN) only ✔ ✖
• C When information is transmitted between two devices using Bluetooth technology, the devices have to be in the line of sight of each other, but when Wi-Fi technology is used the devices need not be in the line of sight of each other ✔ ✖
• D The statements (a) and (b) given above are correct in this context ✔ ✖

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