The Advanced Tech Company has a project to design an integrated information database for a major bank. Data for the project are given below. Indirect project costs amount to $180 per day. The company will incur a $180 per day penalty for each day the project lasts beyond day 30. Normal Normal Crash Crash Time Cost Time Cost Immediate Activity (days) (S) (days) ($) Predecessors A 9 1200 8 1440 None B 6 960 3 2400 None 5 720 3 1080 A,B D 3 1800 2 2400 B E 9 1080 6 1440 CD F 3 1560 2 1680 E G 6 1080 6 1080 E H 6 600 3 1080 G (a) Draw the network diagram for this project. (b) What is the project's duration if only normal times are used? c) What is the minimum-cost schedule? (d) What is the critical path for the minimum-cost schedule