Answer:
c. the quantity of goods and services produced from each unit of labor input
Explanation:
A typical unit of labor input that is used is "man-hours", and is used to define how much hours a typical human would have to put in to create a product or to serve a service.
An example typically given is that, if 1,000 units are produced within 32 hours, then the productivity would be ~31.25 units per man hour.
Typically, the more productive a person is, the more units one would produce within the hour. However, it can be used to simply describe how an average of how much hours may be needed to finish a job.
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