The labor-force participation rate tells us the fraction of the population that a. has chosen to participate in the labor market. b. has chosen not to participate in the labor market. c. is able to participate in the labor market. d. has ever been employed.

a. has chosen to participate in the labor market.

Explanation:

The formula to compute the labor-force participation rate is shown below:

Labor- force participation rate = Labor force ÷ Population of working age

By dividing the labor force with the  Population of working age so that the labor force participation rate could come

Therefore, the option a is correct as it defines the participated in the labor market

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