Question 
During the schedule development process the Project Manager may have to go through several iterations of the schedule before establishing the schedule baseline. Which of the following are tools and techniques that may be used during this process?
A. Critical Path Method, GERT, Resource Requirements
B. Resource Leveling Heuristics, Mathematical Analysis, Calendars
C. Duration compression, Resource Leveling Heuristics, PERT
D. GERT, PERT, Leads and Lags