If Carpenter$$s Mate, Inc., has excess machine capacity and can add more labor as needed $($i$.$e$.,$ neither machine capacity nor labor is a constraint$),$ the excess production capacity should be devoted to producing which product? $($Assume that the excess capacity will be used for a single product line.$)$

If Carpenter$$s Mate has excess machine capacity but a limited amount of labor time, the excess production capacity should be devoted to producing which product or products?