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A. Work packages,work breakdown structure and project schedule
B. cost estimates,work breakdown structure and the project schedule.
C. cost estimates, work packages `and project schedule.
D. cost estimates ,work packages and work breakdown structure.
- estimate activity cost:
decomposing of work packages to activities and estimating cost for each activity by applying appropriate tools and techniques.
- determine budget:
Rolling up and aggregating activities cost with considering contingency reserve and finally checking cash in with cash out if cash out is bigger than cash out, usually we have to change project schedule to reduce the cash out.
Then we need to work packages, activities cost estimate and project schedule
So, the option C should be correct
IN MY OPINION OPTION B IS MORE CLOSED TO QUESTION
C is the correct answer since cost base line only looks at cost estimates what all work packages that will be involved and how long the project schedule will be.
