Parvati inquired if she and the other two were going to be allowed to stay and finish their education. Susan replied that the Headmistress and High Inquisitor made it quite plain to all the parents that obtaining their education was non-negotiable. The Headmistress even pointed out that there have been other werewolves in the past who’d come to Hogwarts and managed to get at least their OWLs before word leaked to the public.