8. (30%). Given the following network, D7 A8 G5 Start C3 E6 End B10 F7 H3 A. (10%). What is the critical path? B. (10%). How long will it take to complete this project? The duration, in days, follows the letter of each activity. C. (10%). Can activity B be delayed without delaying the completion of the project? If so, how many days? 0 9. (20%). Given the estimated activity times below and the network in Exercise 8, Activity amb 6.5 7.5 14.5 B 8.5 10.5 12.5 2.5 3.5 4.5 D 6.5 7.5 8.5 E 5.5 5.5 9.5 F 5.5 7.5 9.5 G 4.5 6.5 8.5 H 2.5 3.5 3.5 what is the probability that the project will be completed within (based on the path with the longest expected time): A. (7%). 21 days? B. (7%). 22 days? C. (6%). 25 days