Consider the project given below consisting of 12 different activities. Draw the network on node diagram of this project and use it to answer the four questions below. Activity Depends on Duration Estimate A1 3 A2 A1 6 A3 A1 3 A4 A2 3 A5 A2,A3 4 A6 A3,A5 5 A7 A4 4 A8 A7,A5 5 A9 A6 6 A10 A8,A9 7