Alyona has been asked to research a new payment system for the retail stores that her company owns. Which technology is predominately used for contactless payment systems that she will investigate? a. Wi-Fi b. Bluetooth c. Near field communication (NFC) d. RF-FA

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Alyona has been asked to research a new payment system for the retail stores that her company owns. Which technology is predominately used for contactless payment systems that she will investigate?

a. Wi-Fi

b. Bluetooth

c. Near field communication (NFC)

d. RF-FA

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