Activity Normal Time Crash Time Normal Cost A 3 2 $ 400 Crash Cost $ 600 B 5 3 $ 600 $ 1200 C 4 1 $ 300 $ 1500 What are the costs per unit of time to expedite each activity? a. b. C. d. e. A = $300, B = $200, C = $300 A = $100, B = $200, C = $400 A = $200, B = $200, C = $200 A $100, B = $400, C = $300 A = $200, B = $300, C = $400