Answer:
A. percentage of the working age population that is not employed.
D. understates the true degree of joblessness in the economy.
B. does not affect the employment-population ratio.
Explanation:
The employment population is the population which is not employed out of the total population willing to be employed.
Thus, in a population there are people who want to work, and are working and people who want to work, but cannot find work.
When a person who is unemployed drops out of the total labor force then the unemployment rate, will be understated which will clearly, not show the fair state of joblessness in the economy as the person without job is not included in labor force.
As the employment ratio is based on population and not on labor force the dropping of unemployed person from the labor force will not affect the employment ratio.