Which type of inventory control is expensive but keep inventory especially secure?

a. rfid tags

b. barcodes

c. visual merchandising

d. crm software

RFID tags is a type of inventory control that  is expensive but helps keep inventory especially secure. Correct A  This automatic tracking system that uses small radio frequency identification devices for identification and tracking purposes. The system is composed of the following: the tag itself, a read/write device, and a host system application for data collection, processing, and transmission.

answerhard disks;