if the company can only chose 1 product which one should it produced? can someone help me solve this

The company makes 3 products Constrained resource Direct materials cost $ 3 per pound A B $80 $56 Selling price $70 Direct material Other variable expense Total variable expense $24 $24 $48 $15 $27 $42 $9 $40 $49 Contribution margin CM ratio $32 40% $14 25% $21 30%