I need the whole step by step working. thanks.

A project has the activity duration and cost information indicated in the table. There is a penalty of $250 per month for every month the project extends beyond 9 months. Normal Crash Crash Normal Immediate Duration Duration Activity (months) Cost ($) (months) Cost ($) Predecessor(s) A 4 500 2 700 None B 3 200 2 250 None C 5 600 4 800 AB D 3 1000 2. 1500 A, B F 2 350 1 600 F 4. 400 2. 1000 F G 6 100 4 200 D a. (3 pts) Draw the network diagram and find the project completion time. What is the project completion time in months? 12 X b. (2 pts) Which one is the critical path? ADG X C. (2 pts) Which activity should be crashed to complete the project in 14 months? EX d. (2 pts) What is the total cost of completing the project in 14 months? (Hint: Include any penalty costs if project extends beyond 9 months.) x Activate Windows (3 pts) What is the lowest total cost for completing this project? 8350 Go to Settings to activate Wir e