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1.WIP Limits provide a boundary/container in which the Scrum Team self-manages (Option B):

WIP Limits establish clear boundaries within which the Scrum Team can make decisions about how much work they take on. This framework allows the team to self-manage their workflow more effectively, as they must decide collectively how to stay within these limits while delivering value.

2.As part of self-managing, Scrum Teams figure out their own WIP Limits (Option D):

A fundamental principle of Scrum is self-management. The team collectively decides its WIP limits, adjusting them based on empirical evidence and ongoing learning about their capacity, flow, and delivery capabilities. This decision-making process is a key aspect of the team's autonomy and self-management(

Options A and C are incorrect because WIP limits do not inhibit self-management (A); instead, they enable it. Additionally, a Scrum Master does not define WIP limits (C); the Scrum Team decides them.

Work Item Age is the amount of time a work item has been in progress. It acts as a leading indicator for the length of the Scrum Team's feedback loop for that item. If a work item stays in progress for too long, it indicates that feedback is delayed, potentially impacting the team's ability to adapt and respond effectively. Tracking Work Item Age helps the team monitor flow and take timely actions to ensure that feedback loops remain short and effective

Throughput, which measures the number of items completed over a specific period, is essential forforecasting future delivery rates. By analyzing historical throughput data, Scrum Teams using Kanban can make informed predictions about how many items they can complete by a given date. References: The Kanban Guide for Scrum Teams​​.

Cycle Time measures the time it takes for a single work item to go from start to completion. By understanding Cycle Time, a team can forecast when multiple items from the Product Backlog will likely be finished based on the average duration it takes to complete an item. This is essential in Kanban as it provides insight into the delivery timeline and is crucial for planning and predictability within a Scrum context. References: The Kanban Guide for Scrum Teams​.