Which three behaviors demonstrate that a scrum team is self-managing

Scrum does not require the Scrum Team to be self-governing, nor does it forbid it. Each organization has a different appetite for what it gives and retains control over for the governance of its people, and that's okay. Sometimes a Scrum Team is hired and assembled fully by an organization without any input from the Scrum Team members, and there's nothing in Scrum preventing that. Likewise, there is nothing in Scrum that prevents a group of people from forming their own Scrum Team ...