What are two Release Train Engineer responsibilities? (Choose two.)

What are two Release Train Engineer responsibilities? (Choose two.)
A . Facilitate PI Planning readiness and the event itself
B. Understand Customer needs; validate solutions
C. Drive relentless improvement through Inspect and Adapt
D. Build an effective Product Owner / Product Manager team
E. Manage and prioritize the flow of work to the program

Answer: A, C

Explanation:

https://www.scaledagileframework.com/release-train-engineer-and-solution-train-engineer/