Final answer:
Abnormal spoilage is not expected under efficient operations and is typically avoidable with proper management. It represents a wastage beyond what's considered acceptable during production.
Step-by-step explanation:
Abnormal spoilage is not expected to occur under efficient operating conditions. This type of spoilage occurs when waste or damage to products happens beyond what is considered normal or acceptable in a production or manufacturing process. It is usually the result of unforeseen circumstances or inefficiencies that are often controllable or preventable with appropriate management oversight. Therefore, options concerning unrealistic standards and the inability for production managers to control the process are less likely to be accurate descriptions of abnormal spoilage.