Final answer:
Ideal standards demand maximum efficiency and can only be achieved if everything operates perfectly.
Step-by-step explanation:
The standard that demands maximum efficiency and can only be achieved if everything operates perfectly is the Ideal standard. Ideal standards are hypothetical benchmarks that assume ideal conditions, such as perfect performance, no wastage, and no interruptions. These standards set a target for maximum efficiency and require everything to operate flawlessly. For example, in manufacturing, an ideal standard may assume that all machines are running at maximum capacity with no breakdowns or downtime. Achieving ideal standards may be challenging, but they serve as a benchmark for performance excellence.