Much like the Campeonato Brasileiro, teams from the decrease series, like B and C, is usually promoted to the highest division each year. In the situation of Italy, only the top rated three groups in Serie B are promoted to Serie A (in Brazil, advertising takes place for 4 teams https://k-o-nh-c-i-chu-n55421.blogpixi.com/37851126/the-what-is-serie-a-diaries