【单选题】

A resource histogram has all of the following characteristics EXCEPT:
A．It generally shows that the project has insufficient resources to be completed oil schedul

B．It is a tool of the staffing management pla
C．It illustrates the number of hours that a person, department, or entire project team will needed each week or month over the course of the projec
D．It can include a horizontal line that represents the maximum number of hours available from a particular resourc Bars that extend beyond the maximum available hours identify the need for a resource leveling strateg