Which of the following is an example of spoilage? short lengths from woodworking operations that cannot be used to make another product edges from plastic molding operations that result from the main product's manufacturing process but have little or no value defective units of laptops detected after the production process but reworked before the units are sold as good products to customers defective men's button down cotton collar dress shirts that have small pulls in the material and must be sold as discounted "seconds" in the factory store