The production function of an economy is given by the equation: Y space equals space K asterisk times L, where Y comma space K and L are respectively, the quantities of output, capital input and labor input. In macroeconomics, Y is interpreted as real GDP. Suppose we only know that capital input K increases at a rate of 1% (per year). The annual rate of increase of "average product of labor," defined as: Y space divided by space L, must be: A 1% 2% C cannot be computed from the given information. D none of the above