Which of the Following Is Not a Characteristic of Production

Multiple Choice

Which of the following is not a characteristic of production technologies that can be described by the Cobb-Douglas production function?

A) The marginal product of an input divided by the average product of that input is constant.
B) The exponents will sum to one if returns to scale are constant.
C) Linear regression can be used to estimate the parameters of the function.
D) All of the above are characteristics of the Cobb-Douglas production function.