You use a simple node network diagram to prepare the schedule for the painting crew to ensure that the furniture is scheduled to be delivered after the paint has dried. The diagram has four nodes: primer coat, first coat of paint, final coat of paint, and furniture delivery. These four activity nodes are connected consecutively by arrows, which show a 24-hour drying time required between each activity. The furniture cannot be delivered for at least a week now. What does each of these arrows show? Question 12 options: A lag time in the project's schedule of activities A project delay that is holding up the furniture installation A "real activity" that is needed to let the paint dry A scheduling error made by the project manager