please explain and show work

The activities necessary for the completion of this project are listed in the following table: Time COUWW Normal Crash Time Normal Crash Immedi. Activity (Weeks) (Weeks) Cost Cost Predece A 6 3 $2.100 $2,700 B 2 1 1.900 2,400 4 3 400 800 D 8 16 1.950 2.500C E 4 3 1.100 1.200 AB IF 3 1 3.100 4,000 DE G 4 2 1.500 2,000 E, F a. What is the project completion date? Select) weeks b. What is the total cost required for completing this project on a. What is the project completion date? [ Select weeks b. What is the total cost required for completing this project on normal time? Select c. If you wish to reduce the time required to complete this project by 2 weeks, which activity(s) should be crashed? Select , and how much will this increase the total cost? $ [Select) d. If you required an additional week reduction, what activity would you crash? (Select] and how much is the total 3 week cost of crashing? $ [Select