5 (20 Marks) A building construction company was awarded a project. The project manager has been very concerned with the amount of time it took to complete several recent jobs. The company only has eight labourers available per day for this project and the concern is whether this resource allocation will be sufficient to complete the project on time. The data (all in days) for the new contract are listed in the following table: Activity Immediate Predecessor Duration Labour Available/Day A ------ 2 2 B ------ 4 5 C ------ 2 3 D ------ 5 2 E A, B 2 4 F C, D 3 2 G D 6 2 H C, E 3 3 I F, G, H