Which of the Following Is NOT a True Statement Regarding

Which of the following is NOT a true statement regarding Network diagrams?

A) All activities with a slack time equal to zero are on the critical path.
B) Nodes not on the critical path can be delayed (for some amount of time) without delaying the final completion of the project.
C) The latest expected completion time refers to the time in which an activity can be completed without delaying the project.
D) To construct a Network diagram, a horizontal bar is drawn for each activity that reflects its sequence and duration.
E) The critical path of a Network diagram is represented by the sequence of connected activities that produce the longest overall time period.