1. Which of the following would be the least likely reason to implement radio frequency
identification (RFID) at a company?

A. Increasing internal inventory accuracy in a make-to-order, low stock environment
B. Automated service scheduling for a fleet of cars with details stored dynamically on the tag
C. Decreasing already low error rates on baggage handling for an airline where each error has
a high cost
D. Automated door openings and closings at a steam energy plant to save on energy costs
여기서 답이 A라고 설명하셨습니다. Barcode에 가깝기때문에 A가 정답이라 했는데,

저는 D가 센서랑 관련있으나 RFID에 추적, 식별 내용이  없어서 제일 아닌 것으로 생각했습니다.
D는 선택지에 고려가 안될까요?