【单选题】

Perform QualityControl is the process of monitoring and recording results of executing the Quality Plan activities to assess performance and recommend necessary changes.______are the techniques and tools in performing quality control.

①Activity network diagram②Cause and effect diagrams ③Inspection
④Flow chart⑤WorkBreakdown Structure ⑥Pareto chart
A、①③⑤B、①②④⑥C、②③④⑤⑥D、①②③④⑥