Question 50 1.5 pts The following CPM/PERT network is for a small construction project with 8 activities labelled a through h, and activity times in weeks: Frish D Question 53 1.5 pts For the project network in question 50 (above), the latest start (LS) time and latest finish (LF) time at node b are a. LS=0 weeks, LF=6 weeks O b. LS-2 weeks, LF-8 weeks O c. LS-3 weeks, LF=9 weeks O d. LS-6 weeks, LF-12 weeks 15 pts Question 54 For the project network in question 50 (above) the available slack (S) for activity d is a. O weeks O b. 1 week Oc2 weeks O d. 4 weeks