Choice "B" is correct. The best productivity measure for the production supervisor is 5.00 units per labor hour. This measures the efficiency and productivity of plant labor, which is within the supervisor's control. Choice "c" is incorrect. Most of the cost factors are outside the control of the production supervisor. Choice "a" is incorrect. The supervisor can affect the efficiency of material usage but not the units per pound. Choice "d" is incorrect. The supervisor has no control over the hourly cost of labor.
