Task time estimates and structure for the activities of a research project are given in the following table. Activity Immediate Predecessor(s) Duration (weeks) A -- 9 B A 2 . C A 12 D A 5 E B 6 F B 8 G C. F 3 H D 2. I H 00 J GI 6 K E. 2 a. The critical path having the fewest activities is (use capital letters and dashes between activities with no spaces). weeks (enter a numerical b. Time to complete the critical path is value, e.g., 8). c. Project duration is weeks (enter a numerical value). d. Slack time for activity A is weeks (enter a numerical value). e. Slack time for activity Fis weeks (enter a numerical value)