Please check answers for correctness and answer letter e. Thanks!

Pirmin's Bike Shop is behind on a custom bike and needs to crash 8 hours of time from the 8-step project. Suppose Pirmin calls the customer and asks for a project extension, reducing the amount of time he needs to crash. Normal Activity Duration (hours) Normal Crash Cost Duration ($) (hours) Crash Cost ($) Immediate Predecessors A 2 10 1 17 B 3 15 2 23 A 5 25 4 30 B D 3 20 1 24 U E 6 30 4 45 IF 2 40 1 60 E G 7 35 6 50 F 10 50 7 80 D,G a. What is the critical path? A,B,C,E,F,G,H b. What is the project length? 34 hours c. Which activity should the bike shop crash first C and how much would it add to the project cost? $5 d. Which activity should be crashed next to reduce an additional hour off the project E and what would be the total cost? (reducing the project by 2 hours) $12.50 e. Which activity(s) should be crashed next if you needed to reduce the project by another 2 hours (total 4 hours) and what would be the total cost for the 4 hour reduction [ Select ]