Kareem Industry produces three types of products: X, Y and Z. There is unlimited demand for the products throughout Southern Ontario. The following information is provided: Unit selling price Unit contribution margin Processing time required per unit $60 $30 1.25 hours Y $40 $20 0.8 hours Z $20 $10 0.5 hours Processing time is limited to 180 hours per month. What product mix should Kareem choose in order to maximize overall profit? Multiple Choice Produce 144 units of X o Produce 360 units of Z Produce 85 units of X and 40 units of Y O Produce 70 units of X, 70 units of Y and 70 units of Z Produce 225 units of Y O