Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

The full employment, or natural, level of output is best described as:
Option A:the maximum level obtainable with existing resources.
Option B:the level at which all available workers have jobs consistent with their skills.
Option C:a level with a modest, stable pool of unemployed workers transitioning to new jobs.

Answer: C