Which statement about SoS participants is true?

• A. Developers and Product Owner participate
• B. Release Train Engineer, Scrum Masters, and system representative participate
• C. Only System Team participates
• D. Only Release Train Engineer participates

Answer: (B)

In SAFe Large Solution, coordination across multiple Agile Release Trains is essential. The Release Train Engineer guides the overall solution, aligning multiple ARTs and any suppliers. Scrum Masters support the teams within each ART, ensuring the agile process runs smoothly and impediments are cleared. The System Team (system representatives) handles system-level work like integration, testing, and the infrastructure needed across the entire solution. Together, these roles cover the governance, facilitation, and technical integration required at the SoS level, so participation by the RTE, Scrum Masters, and system representatives is the correct description. The other options are too narrow or incomplete because they omit one or more of these key roles involved in a Large Solution.