Why is it important to train Product Owners and Product Management before launching the Agile Release Train (ART)? (An SPC exam question)

• In a Lean environment of continuous delivery and flow of value, the focus is on execution so it is better to train before the launch
• To help facilitate the first Program Increment (PI) Planning process
• To have a better prepared Initial Program Backlog for the first Program Increment (PI) Planning
• Because training the leaders for the first time should not occur with the teams