What is one way companies are employing Industrial loT to become more efficient?

What is one way companies are employing Industrial loT to become more efficient?
A . using intelligent sensors to track inventory and shipments
B . using drones to monitor vehicles coming into and out of their facilities
C . installing "smart" entertainment systems to entice employees to spend more time at work
D . providing employees with fitness trackers to ensure employees are active

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Answer: A