问题
单项选择题
When economists are speaking of the labor-force participation rate, they are referring to which of the following The labor-force participation rate is the percentage of the:（）
A. labor force who are new entrants ( less than one year of work experience).
B. working-age population who are not working but are actively looking for work.
C. working-age population who are either working or actively looking for work.
答案
参考答案：C
解析：
The labor-force participation rate is the percentage of the working-age population who are employed or actively seeking employment. The labor-force participation rate can be calculated as: (the labor force/working -age population) × 100.