13. This value represents the planned cost to complete the work that has been done. It is called the _________________ of the task (2 Points) a) budgeted cost of work scheduled b) earned value c) budgeted cost of work performed 14. Negative float can be attributed to: (2 Points) a) The contractor experienced material constraint b) Budget overrun in critical activity(s) c) The imposed finish date is earlier than the calculated finish date 15. When progress, measured in dollars or laborhours, is plotted against time, the resulting ____________can be used to visually demonstrate progress for a variety of tasks or the project as a whole. (2 Points) a) Control chart b) ACWP c) Scurves d) Earned Value Analysis