A、By blocking anonymous advertisements. B、By improving parents-children relationships. C、By reducing the purchases of food with

Parents are being urged to download a free app which tells them the sugar content of food and drink. The "sugar smart app", from Public Health England (PHE), works by scanning barcodes and revealing total sugar in cubes or grams. Officials hope it will help combat tooth decay, obesity and type two diabetes and encourage families to choose healthier alternatives.
    PHE says young children are eating three times more than the sugar limit. Its new Change4Life advertising campaign, which includes the sugar app, suggests that on average children aged four to ten years old are consuming 22kg of added sugar a year. That’s about 5,500 sugar cubes—more than the weight of an average five-year-old child.
    The app has been developed to raise awareness of how much sugar is contained in everyday food and drink. [7]It works on more than 75,000 products, offering a quick guide to help parents to assess potential purchases that may harm their children’s health.
    Dr Alison Tedstone, chief nutritionist from PHE, said children were having too much sugar in their diets and this was leading to painful tooth decay, weight gain and the potential for serious health problems in later life.
5 What is the news report mainly about?
6 What can we learn about the children in England?
7 How can the app help parents?