Just like the Campeonato Brasileiro, groups while in the reduced series, including B and C, may be promoted to the top division every year. In the situation of Italy, just the prime 3 teams in Serie B are promoted to Serie A (in Brazil, promotion comes about for 4 teams https://keo-nha-cai-tv06283.thenerdsblog.com/43566929/the-fact-about-what-is-serie-a-that-no-one-is-suggesting