Just like the Campeonato Brasileiro, groups while in the reduced series, including B and C, could be promoted to the top division each 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://soikonhci44321.targetblogs.com/38026531/the-smart-trick-of-what-is-serie-a-that-no-one-is-discussing