Q4. Assume that a project manager expects to finish a project in 21 days as shown in the table below. However, the owner of the project wants it in 14 days and any period after 14 days the project manager has to pay penalty cost of $100 per day. Indirect project costs $250 per day. Activity Immediate predecessor(s) (5) (S) - Project Activity and Cost Data Normal Time Normal Cost Crash Time Crash Cost (days) (days) 1000 1200 800 2000 600 900 1500 2000 , Imolol C.D 900 1300 900 500 1200 1400 900 900 3 G - - a. Determine the critical path for this project. b. Show the first stage of crashing (which activity) and the cost before and after crash