Which is an example of thinking at the margin?

What do you think?

http://www.scarsdaleschools.k12.ny.us/cms/lib5/NY01001205/Centricity/Domain/237/Margin-Definition-thinking.pdf

im stuck between C or A

Check the paragraph below the chart in the link above. Your answer is there.

Im gonna go with A

Obviously!

"Employers think at the margin when they decide how many extra workers to hire. "

From the above wet site.

C ...save extra Job and a time

The answer is A. Figuring out what you will give up and what you will gain by hiring a new worker.

Thinking at the margin means considering the additional or incremental costs and benefits of a decision. It involves evaluating the advantages and disadvantages of making a small, incremental change in a current situation. In the example of hiring a new worker, you would need to weigh the potential benefits that the new worker may bring, such as increased productivity or expanded services, against the costs involved in terms of salary, training, and other resources. By considering these factors, you can make an informed decision about whether the benefits outweigh the costs and if hiring the new worker is a good idea.