The correct response that exemplifies an abstraction used by an Internet of Things (IoT) technology is:
A smart thermostat controls the temperature of the house by allowing the user to see all data and control all systems.
This option represents an abstraction because it encapsulates the complex operations and data handling related to temperature control and presents them in a more user-friendly manner, allowing users to interact with and understand the system easily. The other options are more focused on specific functionalities rather than the abstraction layer that simplifies the interaction with the system.