Similar to the Campeonato Brasileiro, teams inside the decrease series, for instance B and C, is usually promoted to the top division each year. In the case of Italy, only the prime a few groups in Serie B are promoted to Serie A (in Brazil, advertising happens for four teams https://k-o-nh-c-i42308.elbloglibre.com/37704538/what-is-serie-a-no-further-a-mystery