All of the following can be said about network diagrams EXCEPT: 1.The latest expected completion time refers to the time in which an activity can be completed without delaying the proiect. 2. For making a network diagram, a horizontal bar is drawn for each activity to show its sequence and duration. 3.In a critical path, the order and duration of the sequence of activities directly affect the completion date of a project. 4. A sequence of connected activities that produce the longest overall time period is referred to ascriticalpath.