The correct answer is: B. scrap
Scrap is a material that is discarded as waste but still has some value. It can be recycled or reused, or it can be sold for a lower price than its original value. Scrap can come from a variety of sources, including manufacturing, construction, and demolition.
Waste is material that is discarded as useless or worthless. It can be solid, liquid, or gas, and it can come from a variety of sources, including homes, businesses, and industries. Waste can be hazardous or non-hazardous, and it can be disposed of in a variety of ways, including landfilling, incineration, and recycling.
Defective is an adjective that describes something that is not perfect or does not meet the required standards. Something that is defective may be damaged, broken, or not working properly. Defective products can be repaired, replaced, or refunded.
Spoilage is the process of something becoming rotten or unusable. Spoilage can occur due to a variety of factors, including exposure to moisture, heat, or bacteria. Spoilage can cause food to become unsafe to eat, and it can also damage other materials, such as clothing or furniture.