Productivity is most accurately defined as the total amount of material an individual or crew places in a given time (D). It measures the efficiency of work by relating output (e.g., quantity of material installed) to input (e.g., labor hours). Option A describes the total output for a job, not the rate.Option B refers to planned material usage. Option C focuses on an individual's total output for a job, not necessarily within a specific timeframe. (Fundamentals of Crew Leadership, Fourth Edition, NCCER, Section 5.1.1 Defining Productivity)
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