Inditex, the parent company of fast-fashion retailer Zara, is an expert at using technology to track items. For instance, Zara has small bits of this technology attached to its fashion products' security tags. This technology uses signals to keep track of inventory and inform the retailer when more products need to be ordered. It also helps with shipment tracking. This technology is called _______.
electronic data interchange
vertical marketing system
digital distribution
radio frequency identification
freight forwarders
Answer: radio frequency identification