Consider the project dependency matrix and activity durations in days provided below. Al A2 A3 A4 A12 A1 A2 X A3 X A4 X AS X X A6 X X A7 X A8 X A9 X A10 X A11 X A12 X X X Duration 5 6 4 6 11 9 7 3 10 9 8 6 a. [20 points] Draw the project network diagram with the completed CPM analysis. b. [5 points] What is the shortest duration of this project? c. [5 points] What is the critical path of this project