Which of the following will the PoS systems need to accept this type of payment?

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A company is starting a new retail division and is gathering requirements for its new tablet-Cased PoS systems. The company has partnered with a large smartphone company to accept payments from its customers" phones.

Which of the following will the PoS systems need to accept this type of payment?
A . Bluetooth
B . NFC
C . Chip and pin reader
D . Mobile hotspot

Answer: A