Team selection is not just a function of finding someone whos a technical or administrative expert. What will a project sponsor leading a high visibility project look for in a project manager？（）

单项选择题Whydoesaprojectmanagerneedanexecutivesponsor？（）

A.To keep the project team focused on its work
B.To provide behind-the-scenes assistance with organizational commitment and support
C.To sign-off on user requirements
D.To negotiate contracts with outside vendors

单项选择题Theprojectmanagerisdevelopingaprojectschedule.Theprojectmanagernegotiatedwithalltheexecutionorganizations，andthetasktimesareasshortaspossible.Aftermanipulatingtheschedule，theprojectcompletiondateisstillbeyondthedaterequestedbythebusinessownersoftheproject.Theprojectmanagerbelievesthatthecontentagreedonfortheprojectisappropriate，andconcludesthatthisscheduleshouldbetakentothebusinessownersandrenegotiated.Whichoneofthefollowingtoolswillhelptheprojectmanagerjustifytherevisedschedule？（）

A.Data flow model
B.The project critical path
C.Resource loading chart
D.WBS （Work Breakdown Structure）