Underwood, Inc manufectures two products. It currently has 2,250 hours of direct labor and 900 hours of machine time available per month. The table below lists the contribution margin, labor and machine time requirements, and demand for each product. Product A Unit contnbution margin S 17.00 S 14.00 1.400 units hour hour 1,800 units Labor time Machine time % hour % hour How much of each product should Underwood manufacture per month? 1,400 unlts of A and 1,800 units of B 1,400 unlts of A and O unlts of B O units of A and 1,800 units of B 4500 units of A and 1,400 units of B