Marley Corporation makes three products ,Y,&Z with the following characteristics: 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. Product Z is more profitable than the others, so only product Z should be produced b. Product Y is more profitable than the others, so only product Y should be produced c. Product X is more profitable than the others, so only product X should be produced d. All products (X,Y, and Z) are equally profitable, so any product can be produced