Consider the following data for a project to install a new server at the Northland Pines High School: Activity Immediate Predecessor(s) Activity Time (days) 3 A B 3 A C 6 A D 4 B E 1 B F 5 B, C D, E G 2 LUI - H 6 F 3 F 8 G, H, I a. Choose the correct network diagram below. A. O B. 4 B 12 6 6 OC. OD. B B E S S 5 5 3 b. Calculate the critical path for this project. The critical path is and the project duration is days. (Enter your response as a whole number.) c. How much slack is in each of the activities G, H, and I? Activity Activity Time (days) On critical path? Slack (days) G 2 H 6 3