A city has beautiful scenery and a pleasant climate. Almost all of the city's Chenxi Roads are opened for elderly nursing homes. Many elderly people from all over the country come here to travel and recuperate. Chenxi Road has only a few residential houses, but near Chenxi Road But there are many shops specializing in children's products, and the business is quite hot. Which of the following best explains this phenomenon? ["Goods at low prices are sold at shops specializing in children's products near Chenxi Road.", 'The elderly who come to the hospital are accompanied by children and children, and they need to buy the necessary items for the children.', 'Although there are not many residents living on Chenxi Road, children often give each other gifts.', "Children's store near Chenxi Road."]