单选] How should an agile team use a KANBAN board?

A、to escalate issues to the project owner
B、to work with the team to increase velocity
C、to share risks with the project manager
D、to reduce confusion about task ownership敏捷团队应该如何使用KANBAN板
A、将问题上报给项目负责人
B、与团队合作,提高速度
C、与项目经理分享风险
D、减少有关任务所有权的困惑