Duration (weeks) First Crash Second Crash Given: We have the following list of activities for a project and crashing costs: Path Activity Immediate Predecessor Top A B A C BE 5 6 3 $8 $7 $14 $10 $12 $10 Middle D 3 7 E D BE $9 $8 $14 $11 $9 $15 Bottom F 5 5 G H F G $15 $11 $12 $15 $13 $12 5 a. Draw the precedence diagram using the Activity On Arrow (AOA) approach. (2 points) b. Determine which activities should be crashed to shorten the project by 2 weeks as cheaply as possible. (8 Points) (Submit your work through the provided link.)