Similar to the Campeonato Brasileiro, teams within the lessen series, including B and C, is usually promoted to the very best division every year. In the situation of Italy, just the best a few groups in Serie B are promoted to Serie A (in Brazil, marketing happens for four groups https://xem-b-ng-tr-c-ti-p-k-o-nh80235.howeweb.com/38337260/the-smart-trick-of-what-is-serie-a-that-nobody-is-discussing