Answer:D. Industrial Internet of things.
Explanation: This is the term used to describe the interconnection of sensors,Routers and other devices in order to improve the overall quality, efficiency, speed, amount of data collected,analysed and processed over a given period of time and over a wide range of Networks.
Industrial Internet of things is different from the internet of things basically because of their usage. Industrial Internet of things is used in industries where the volume of data is high.