An economy is characterized by the following production function:
Y = AK^0.25L^0.75
where K denotes capital, L denotes labor, A denotes the total factor productivity, and Y denotes output produced. All capital and labor are fully employed. Suppose that the growth rate of labor is 1%, the growth rate of capital is 4%, and the growth rate of output is 4%. The growth rate of total factor productivity A is:
1.5%
2.5%
1.75%
2.25%