1. ABC College has a project plan to develop new system for online Registration and online reposting the students’ grade report. The required types of activities and the time which is required to do each task are well identified as indicated in the table. Answer the following questions based on the given table. Activity Predecessor Activity time (Weeks) A None 4 B A 13 C B 10 D A 7 E D 9 F E 3 G C, F 11 Total 57 A. Construct the project network Diagram using Activity on Node (AON). B. Determine the critical path C. Determine the Earliest Start, Earliest Finish, Latest Start and Latest Finish times​