From the following information, develop a PDM project network. Complete the forward and backward pass, compute activity slack, and identify the critical path. How many days will the project take? Activity A Duration (days) 2 Predecessor None B 4 A Description Survey site Excavate site Install power lines Install drainage Pour foundation C Nm 0 m 3 B D B 5 3 E C, D Use whatever approach and tool you wish (you could even do it by hand and scan and upload the result)