Marley Corporation makes three products (X, Y, & Z) with the following characteristics: Products X Y Z Selling price per unit $ 10 $ 15 $ 20 Variable cost per unit S8 S 11 S 10 Machine hours per unit 2 4 10 The company has a capacity of 2,000 machine hours, but there is virtually unlimited demand for each product. In order to maximize total contribution margin, which product should be produced (choose the best option)? a. All products (X, Y. and Z) are equally profitable, so any product can be produced Ob. Product Z is more profitable than the others, so only product Z should be produced OC. Product Y is more profitable than the others, so only product Y should be produced Od. Product X is more profitable than the others, so only product X should be produced