The project manager found that some tasks were not completed due to over-commitment of one resource. The project manager realizes that if other resources are used, the critical path will not be affected. What should the project manager use to meet the schedule? 项目经理发现由于一名资源过度承诺而导致一些任务未完成。项目经理意识到如果使用其他资源，将不影响到关键路径。项目经理应该使用什么来满足进度计划？ ◑A.What-if scenario analysis假设情景分析 ◑B.Resource leveling资源平衡 ◑C.Fast Tracking快速跟进 ◑D.Resource smoothing资源平滑
