If Labor Is the Only Variable Input, an Increase in the Quantity

Question 5
Multiple Choice

If labor is the only variable input, an increase in the quantity of labor: A)does not have any effect on the quantity of output. B)causes the output to increase initially at a diminishing rate and then at an increasing rate. C)causes the output to increase at a constant rate till the last worker is hired. D)causes the output to increase initially at an increasing rate and then at a decreasing rate. E)causes the output to decrease at a constant rate till the last worker is hired.