One of the main attractions of smart house is how enjoyable it can make one’s life. First, a robot vacuum cleaner takes care of the housekeeping task of vacuuming, or any other cleaning. The smart house also steams all the clothes in the closet and gives ideas on what to wear for that day’s weather. Bill Gates has already used this lifestyle in his home. In his house the pictures on the walls change to whatever a person wants to see and so does the temperature to make everyone comfortable. What is the overall advantage of smart house over usual houses most of us have now
A. It has a robot vacuum cleaner. B. It provides a very enjoyable life. C. It steams all the clothes in the closet. D. It gives advice on what to wear.