QConsider the following: 1. Bluetooth device 2. Cordless phone 3. Microwave oven
4. Wi-Fi device
Which of the above can operate between 2.4 and 2.5 GHz range of radio frequency band?

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• A 1 and 2 only ✔ ✖
• B 3 and 4 only ✔ ✖
• C 1, 2 and 4 only ✔ ✖
• D 1, 2, 3 and 4 ✔ ✖

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