Consider the project describe in the table below Activity Duration Immidiate Predesessor A 5 - B 7 A C 4 A D 3 B, C E 5 C F 1 D, E The critical path and project duration for the process is: A-B-D-F and 16 A-B-E-F and 18 A-B-D-C-E-F and 25 A-C-E-F and 15