单选题 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.

【正确答案】 C

【答案解析】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.