Ivanhoe Corporation produces three products, Standard, Deluxe and Superior, with the following characteristics:

	Standard	Deluxe	Superior
Selling price per unit	$23	$25	$24
Variable cost per unit	17	20	21
Contribution margin per unit	$6	$5	$3
Machine hours per unit	2	2	2

The company has only 1840 machine hours available each period. If demand exceeds the company's capacity, in what sequence should orders for the three products be filled to maximize the company's total contribution margin?

Standard first, Superior second, Deluxe third

Standard first, Deluxe second, Superior third

Deluxe first, Standard second, Superior third

Superior first, Standard second, Deluxe third