Consider the network scheduling data provided in Table. Activity Immediate Predecessor(s) Duration A -- 9 A 1 B A 7 D A 2 B 6 B 3 E F G 5 5 CF D H D 5 I H 4 J 5 GI EJ K 6 a) Calculate ES, EF, LS, and LF for each activity. b) Which activities form the critical path? c) What is the estimated time of the critical path? d) Which activity (ies) can be delayed 3 weeks without impacting the expected project completion date? e) Which activities can be delayed without impacting the expected project completion date? f) How many week(s) can you delay activity C, without impacting the expected project completion "Act date? Got g) What is the impact to the project if activity D takes 2 weeks longer than planned