During PI planning, which two tasks are part of the scrum master's role in the first team breakout?

During PI planning, which two tasks are part of the scrum master’s role in the first team breakout?

During PI planning, which two tasks are part of the scrum master’s role in the first team breakout?
A . Provide clarifications necessary to assist the team with their story estimating and sequencing
B. review and prioritize the team backlog as part of the preparatory work for the second team breakout
C. Be involved in the program backlog refinement and preparation
D. identify as many risks and dependencies as possible for the management review
E. facilitate the coordination with other teams for dependencies

Answer: A, E