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U Question 41 2 pts Consider the following table of activities that describes a project network. What is the first activity you would crash? Normal Crash Normal Crash Activity Predecessorsduration duration cost cost (days) (days) A 5 3 $1,000 $4,000 B A 8 5 $4,000 $7,000 A 7 4 $2,000 $4,000 6 3 $1,000 $2,000 E B, C 9 5 $5,000 $8,000 F B, C 10 6 $3,000 $5,000 D, E, F 5 4 $2,000 $5,000 B, C OF D B Question 40 2 pts The rule assumes credit is earned for having performed the work once it is completed. This rule is usually used for work packages having very short durations. 50/100 0/50 100/1 O 50/50 O 0/100 Question 39 2 pts When considering the sequence and timing of activities, which of the following is NOT one of the types of project network constraints? Resource All of these are types of constraints that could impact structure of the project network. Time O Physical