Harrington Corporation produces three products, A, B, and C. Pertinent information on these products is as follows:

Product	Selling Price per Unit			Variable Cost per Unit			Fixed Cost per Unit			DL Hours per Unit
A (Anchor bolts)	$	4.00		$	1.00		$	2.00		2
B (Bearings)	$	3.50		$	0.50		$	2.00		2
C (Castings)	$	6.00		$	2.00		$	3.00		3

There are 150 direct labor hours available. Machine-hour capacity allows 100 anchor bolts, only; 50 bearings, only; 40 casters, only; or any combination of the three that does not exceed the capacity.

The machine-hour constraint for Harrington's linear programming model is:

Multiple Choice

• The same as the labor-hour constraint.

• A + B + C 190.

• Indeterminable from the data given.

• A + 2B + 2.5C 100.

• 100A + 50B + 40C 19,000.