Which statement best describe IOT (Internet of things)

It is the billions of physical devices around the world that are now connected to the internet, all collecting and sharing data

It is a network of servers that is geographically dispersed to enable faster web performance by locating copies of web content closer to users or facilitating delivery of dynamic content

It is a unit of measurement that is used to determine the licensing cost of IBM products

It is a virtual representation, or emulation, of a physical computer.