4. Apply what have you learned in PERT/CPM to calculate the following for the given tasks: Task A, Duration: 6, Predecessor: none Task B, Duration: 8, Predecessor: none Task C, Duration: 3, Predecessor: B Task D, Duration: 10, Predecessor: A,C Task E, Duration: 5, Predecessor: DB Provide answer for the following: (More than one answer will mark the part of the question by zero) 1 - Project completion time 2- Slack (float) of task C 3- Critical Path 4- Latest start time of task B 5- Earliest finish time of task D (5 Points) Enter your