Which of the following best describes an example of a system-level intervention?
a) Advocacy by consumer groups to lobby Federal politicans to outlaw selling food and drinks high in added sugars to children in school canteens.
b) A local GP advising child patients to avoid food and drinks high in added sugars.
c) A nation-wide advertising campaign to educate the population about the health dangers of food and drinks that are high in added sugars.
d) A change in Federal government legislation that outlaws selling food and drinks high in added sugars to children in school canteens.
Answer: D