Final answer:
Efficiency is best described as doing things right, ensuring maximum productivity and minimizing resource waste to achieve desired outputs.
Step-by-step explanation:
Another term for efficiency is doing things right. Efficiency in economic terms is about using resources to their fullest to produce desired goods and services. It's about systematic organization and maximization of production to achieve the highest output with the least waste of resources. In the context of the production possibilities frontier, efficient choices mean no additional quantity of one good can be obtained without decreasing the quantity of another. Thus, efficiency is aligned with doing things right as it ensures that every process is optimized for maximum productivity and minimum waste.