What are two behaviors of an effective Scrum Master? (Choose two.) You have reached the max number of allowed answers

What are two behaviors of an effective Scrum Master? (Choose two.) You have reached the max number of allowed answers
A . Facilitate the PI Planning session
B . To act as a servant leader and exhibit Lean-Agile Leadership
C . To guarantee no changes are made to the scope during an Iteration
D . To facilitate the team’s progress toward the Iteration goals
E . Facilitate more than two teams

Answer: B, D