The total completion time is 25 days. Task A is planned to take seven days. Task B is planned to take five days. Task C is planned to take eight days. The tasks have a serial relationship. How much slack does the project have? Question 4 options: Positive 5 days slack Positive 17 days slack Positive 3 days slack Negative 5 days slack Question 5 (2.5 points) Listen Total slack is calculated for each of the activities by finding the difference between the: Question 5 options: EF of the activity and the LS of the activity or the difference between the ES and LF of the activity. ES of the activity and the LF of the activity or the difference between the ES and LF of the activity. EF of the activity and the LF of the activity or the difference between the ES and LS of the activity. ES of the activity and the LF of the activity or the difference between the EF and LS of the activity. Question 6 (2.5 points) Listen Calculate the latest finish for Task D if one of its successors, Task F, has a latest start on day 9, its other successor, Task E, has a latest start on day 10, and the duration of Task D is 2 days. Question 6 options: day 10 Cannot be calculated based upon information given. day 12 day 9