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The scenario described in the question involves various devices and technologies interacting with each other to create a seamless and convenient user experience. One of the main technologies that enable this type of interaction is the Internet of Things (IoT). Therefore, the correct answer to the question is Option 2: Internet of Things.
The IoT is a network of interconnected devices that can communicate with each other and exchange data over the internet. These devices can range from smartphones and smart homes to cars and industrial machines. The key idea behind IoT is to make everyday objects smarter and more efficient by connecting them to the internet and enabling them to exchange data with other devices.
In the scenario described in the question, several IoT devices are in use, including a smartphone, a smart mirror, a refrigerator, and a car. Each of these devices is equipped with sensors and connectivity features that enable them to interact with each other and with other devices on the internet.
For example, when the user taps their smartphone to stop the alarm, it triggers the geyser to turn on automatically. This is made possible by the IoT technology, which enables the smartphone and the geyser to communicate with each other over the internet.
Similarly, the smart mirror in the bathroom shows the day`s weather and indicates the level of water in the overhead tank. This is made possible by the IoT sensors that are built into the mirror and the tank, which can communicate with each other over the internet.
The refrigerator in the scenario is also an IoT device that can recognize the shortage of stock in it and place an order for fresh grocery items. This is possible because the refrigerator is equipped with sensors that can detect the quantity of food items inside it and can communicate with an online grocery store to place an order automatically.
Finally, the car in the scenario warns the user about traffic congestion ahead and suggests an alternative route. This is made possible by the IoT technology that is built into the car, which can communicate with other cars and traffic management systems over the internet to obtain real-time traffic data and suggest alternative routes to the user.
In conclusion, the scenario described in the question involves the use of several IoT devices that communicate with each other over the internet to create a seamless and convenient user experience. Therefore, the correct answer to the question is Option 2: Internet of Things.