How do Kanban Teams implement the SAFe Lean-Agile mindset of relentless improvement?

How do Kanban Teams implement the SAFe Lean-Agile mindset of relentless improvement?
A . By establishing a Kanban board to visualize the flow of work within Kanban team and aligning with the Program and the rest of the teams
B. By using Cumulative Flow Diagrams which objectively measure bottlenecks and variation in the flow which could be due to systemic factors
C. By estimating team velocity and comparing it across Iterations for continuous improvement
D. By creating Classes of Services and Policies to execute the work in a way that is aligned with Program and Large Solution Levels

Answer: B

Explanation:

https://www.scaledagileframework.com/team-kanban/