As the Amount of Labor Input Increases ________

Multiple Choice

As the amount of labor input increases ________.This means that the marginal product of labor (MPL) ________.

A) the slope of the production function increases;goes up
B) the slope of the production function falls;declines
C) the slope of the production function falls;goes up
D) the slope of the production function increases;declines
E) none of the above