A network of computer systems as well as physical objects $($appliances$,$ equipment, building components, etc.$)$ that have software, sensors$,$ and network connectivity enabling them to collect and exchange data within the network is called the:

D$)$ Internet of Objects $($IoB$).$

B$)$ Network of Electronic Stuff $($NES$).$

A$)$ Internet of Things $($IoT$).$

C$)$ On$-$Site Electronic Information Directory $($OEID$).$