A team member notifies the project manager that an important component has been delayed by a vendor. Because of the potential impact, the team member wants the project manager’s permission to inform the sponsor directly and to generate an alert related to the situation. To what plan should the project manager refer? 一位团队成员通知项目经理，供应商延迟交付一个重要部件，由于潜在的影响，该团队成员希望项目经理允许直接通知发起人并生成与这种情况相关的警报。项目经理应该查阅哪一份计划？ ◑A.Procurement management采购管理计划 ◑B.Communications management沟通管理计划 ◑C.Stakeholder’s engagement相关方参与计划 ◑D.Risk management风险管理计划
