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What is the range of Near-Field Communications (NFC)?
4cm or 1.6in
10cm or 3.9in
15cm or 5.9in
20cm or 7.9in
The correct answer is: 4cm or 1.6in
Near-Field Communications (NFC) is a technology that allows devices to communicate by being placed close together, usually within a few centimeters. The correct range of NFC is 4cm or 1.6in. Options B, C, and D have incorrect ranges because they exceed the maximum distance for NFC communication. NFC is primarily used for short-range communication and is limited to about 10cm or 3.9in, which is closer to option A than the other options. Therefore, option A is the most accurate and the correct answer.