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Below are twelve instructions. Which are best described as planning, and which are best described as forecasting? Give a complete definition of the work. b. Lay out a proposed schedule. c. Establish project milestones. d. Determine the need for different resources. e. Determine the skills required for each WBS task or element. f. Change the scope of the effort and obtain new estimates. g. Estimate the total time to complete the required work. h. Consider changing resources. i. Assign appropriate personnel to each WBS element. j. Reschedule project resources. k. Begin scheduling the WBS elements. l. Change the project priorities