Concept:Physical productivity depends on factors directly involved in production, not on the market price of the output.Explanation:Physical productivity is the total quantity of goods produced from given inputs.It is directly affected by the state of technology, the quantity of inputs, and the quality of inputs.Better technology and better or more inputs raise physical output.The price of output only determines the money value of what is sold; it does not change the actual volume produced.Hence, price of output is the exception.Answer:D. price of output