Correct Response: B. NFC is an extremely short-range (4 cm or less) wireless communication protocol for small amounts of data. This makes it an excellent choice for communication between a credit/debit card and a reader during the tap-to-pay process. A is incorrect because video chats require large amounts of data and long distances. C is incorrect because collection of movement data is done either using a device's internal accelerometer or through a wired or wireless connection of a remote accelerometer. When wireless technology is used, it is over distances larger than 4 cm. D is incorrect because the instant geotagging of photographs is done using a global positioning system and does not involve extremely short-range wireless communication.
