If hiring one worker increases output significantly, and hiring a second worker still increases output but less than the first, then hiring a third worker will likely lead to output increases that are: A:B :: D:?

When hiring workers, we often see that the first worker brings a big boost in output because they can start using the tools and resources available. The second worker still helps, but their contribution isn't as large as the first because they might be sharing tasks or space. This idea is called diminishing marginal returns, meaning that as we add more workers, each additional worker contributes less to the overall output than the one before. So, if we hire a third worker, we can expect their increase in output to be even smaller than the second worker's, following the same pattern. For example, if the first worker increases output by 10 units, and the second by 7 units, the third might only add 4 units.