The Richmond Company produces three products with the following costs and selling prices: A B Selling Price per Unit $16 $21 $21 Variable Cost per Unit $7 $11 $13 Contribution Margin per Unit $9 $10 $8 Direct Labour Hours per Unit 1 1.5 2 Machine Hours per Unit 4.5 2.5 N A.If the number of direct labour hours is the production constraint, in which order should the company produce the three products? B.If the number of machine hours is the production constraint, in which order should Madison produce the three products