Final answer:
The standard requiring maximum efficiency is the 'ideal standards.' Productive efficiency is reflected by points on the PPF curve, and allocative efficiency by points reflecting societal preferences. Choices K, L, and N's superiority depends on stated preferences or the context of economic and environmental trade-offs.
Step-by-step explanation:
The standard that demands the utmost efficiency and can be attained only if all processes operate perfectly is known as ideal standards. These standards assume a level of perfection where there are no machine breakdowns, perfect work execution, and no waste of resources. On the other hand, continuous improvement standards are about ongoing, incremental advancements, while Kaizen standards focus on continuous, small incremental improvements involving all employees. Currently attainable standards reflect the best performance that can currently be achieved under expected operating conditions.