One product owner now supports four Scrum Teams on one product and is attending twenty events per week. Which two responses are recommended for the challenges of being a product owner for multiple teams?

• AAppoint a proxy product owner for two of the teams and split attendance.
• BGive each team its own Product Backlog so each can be managed independently.
• CAttend only Sprint Reviews and delegate all other events to the Scrum Masters.
• DDelegate the work of Product Backlog management while retaining the ordering decision, and reduce the number of decisions that need the product owner present by making the Product Goal and the reasoning behind the order visible.