Answer:All of the above
Step-by-step explanation:Internet of thing(IoT) is the feature that helps in the growth of the internet connectivity.The connectivity occurs between the objects and the devices persisting of the internet connectivity. This connectivity helps in the extending and expanding of the internet mostly by using the IP addresses.
The examples on which IoT can provide the services are the electrical appliances,operating system,cars, alarm clocks etc. Thus automobiles, refrigerators(electrical appliance) and other computing devices can have IoT.