Given is a CPM project network diagram as shown below. Start End Start End Activity day A TBTC 6 I 4 EFT 1 2 G 5 H 3 | O a) The Project Completion time = days b) The Earliest Start time, ES, of Activity G = days. c) The Latest Finish time, LF, of Acitivity C days. d) The critical activities are = (ex. Fill in answer as: ABCD)