A Refer to the table below to answer the question(s) that follow: Activity Times (weeks) Activity Predecessor Optimistic Most Likely Pessimistic 9 15 21 B 13 21 23 A 6 9 18 D A 23 35 47 E B 19 26 27 F 23 29 41 G DE 14 20 26 H F G 2 5 8 What are the estimated expected completion (mean) times (in weeks) for activities A-H? O 15; 20; 10; 35; 25; 30; 20; 25 O 15; 20; 10; 35; 25; 30; 20; 5 15; 25; 10; 35; 25; 30; 20; 5 O None of the above