Question 3 (20 Points) Consider the following project. (5 points each part) Activity Immediate Predecessors ABCDEFG A B, C, D A C, D Duration 244224 1 Write on the answer sheet a). The slack time of each activity. Which activities are critical? b) What is the total project duration? c) Identify ALL critical paths. How many are there? d) If you would have a chance to reduce the duration of two activities by one time unit each, which two activities would you choose? Will you be able to reduce this way the total project time?