HW7 3) A political campaign manager must coordinate several activities in order to be prepared for an upcoming election. The following table describes the relationships among the activities that need to be completed, as well as the expected activity times. (25 pts) EXPECTED IMMEDIATE PREDECESSORS ACTIVITY TIME (WEEKS) 6. A 4 B, C D, E a) Develop a project network for this problem. b) Determine the ES, EF, LS, LF, and slack time for each activity. Also, determine the total project completion time and the critical path(s). ABCDEFCH