Mary is planning her wedding and develops the following preliminary information. 14. Chapter 18, Problem and Activity # 2, OM4, page 409. Answer items a, b, and c only. Activity Task Immediate Predecessors Estimated Normal Time (weeks) A Select wedding date None 1 B Select wedding location None 4 C Prepare guest list Who is attending? A, B 3 D Select entertainment A 4 E Choose catering A, C 3 F Wedding day D, E 0 A. Draw the network diagram for this project. B. What is (are) the critical path(s)? C. What is the project completion time?