Passage 2Questions 1 to 5 are based on the following passage.Our company offers a full range of Smart Home products, focusing on making your home safer and more convenient, and saving energy. All of the products are simple, even if what happens behind the scenes is clever. The Smart Home Controller is the heart of the system. It communicates with all your other products, and lets you control them with the easy-to-use mobile app for phones, even if you're stuck on the motorway 300 miles from your home Wi-fi. The Radiator Thermostat (散热器恒温控制器) lets you control your heating away from home or from the sofa. And unlike some smart heating systems, you can set the temperature per room, helping you save even more energy and money.The Smart Plug offers similar advanced control, from TVs and game controllers to the lamp (灯) in the kids' room. You just don't need to worry about whether you left something on after leaving home. You can just check on your phone, and switch things off from the app. If you want to save energy, you might want to buy Starter Kit. This includes two Radiator Thermostats, the Smart Home Controller and Door/Window Contact. These use a sensor (感应器) that lets you know if you've left a window open or if someone tries to break in. That brings us to the other side of the Smart Home: security and safety.For more information about our products, please refer to our website and e-Shop.1. One purpose of the company's Smart home products is to ________.

A. make your home attractive
B. reduce daily expenses
C. appeal to customers
D. save energy