Given is a PERT project network diagram as shown below. A F H End Start E B B D G Activity Start Time lo A 1.56 B 2.36 C 15.00 D 2.65 Ole E 1.98 G 3.69 | End 2.89 Jo 15.32 a) The Project Completion time (in 2 decimal places) (in 2 decimal b) The Earliest Start time. ES, of Activity G - places) (in 2 decimal c) The Latest Finish time. LF, of Acitivity C = places) (ex. type in critical activities as d) The critical activities are = ABCD, no comma, no space)