(3). The following is a list of tasks that have to be completed as soon as possible. Activity Predecessors Time (hours) A 5 B B,C A,B F C G D,F 5965926 10 H B 8 (a) What are the critical activities for this project? (b) How soon can the project be completed? (c) What is the total float of activity F? (d) If activity D is made shorter by 1 hour, would the project take less time to complete? Explain briefly (e) If activity E is made shorter by 1 hour, would the project take less time to complete? Explain briefly