During a critical project, an essential team member resigns. What should the project manager do first to manage this situation?
在一个关键项目中，一名重要的团队成员辞职。若要管理这种情况，项目经理首先应该做什么？
A.Review the risk management and action response plans.审查风险管理和行动应对计划。
B.Determine why that team member resigned.确定该团队成员辞职的原因。
C.Allocate the remaining workload to the other team members.将剩余的工作负荷分配给其他团队成员。
D.Inform project stakeholders.通知项目相关方。