Activity Original Predecessor's Number of Crash length days activity cost per (days) can be crashed day A: Select admin and 12 / (or 0) medical staff B: Select site and do 9 survey C: Select equipment 10 A D: Prepare final 9 B construction plans B: Bring utilities to site 24 B F: Interview applicants 10 A and fill job positions G: Purchase and take 35 C $10,000 delivery of equipment H: Construct the hospital 40 D $25,000 1: Develop an 15 A $10,000 information system J. Install the equipment 4 E, G, H K: Train nurses and G F. I, J support staff (a) (8 points) Please draw the project network diagram. (b) (8 points) How long will the project take if Kramer does not crash any activity? And why? (c) (6 points) Which activities can be delayed without delaying the projection completion time