Which of the following situations is one where the goal of efficiency is being met?

I believe the answer is: When you do something with as little waste as possible.

Efficiency refers to the state when you able to utlize all the resources that you have to its maximum potential.

For example, when producing chicken meat packing, the companies often separate the head and feet. To obtain efficiency they would collect all the head and feet and grind them to create chicken sausage.

answer; sociological imagination;