Consider the following project. Activity Predecessor(s) Duration (days) A 3 B 2 C A 5 D B 5 E C, D 4 F C, D 3 G E, F 3 (a) Draw the project network diagram. Use the method discussed in the course, with activities assigned to nodes and the predecessorsuccessor relationships indicated by the arcs. (b) Develop the project schedule using the critical path method, indicating the early start, early finish, late start, late finish, and slack for each activity. What is the project duration, and which activities are critical?