Which of the Following Statements Is Incorrect

Which of the following statements is incorrect?

A) The employment rate is the number of people employed divided by the working- age population, all multiplied by 100.
B) The labour- force participation rate is the labour force divided by the working- age population, all multiplied by 100.
C) The involuntary part- time rate is the number of involuntary part- time workers divided by the number employed, all multiplied by 100.
D) The labour force is equal to the number of people employed plus the number of people unemployed.
E) The unemployment rate is the number of persons who are unemployed divided by the labour force, all multiplied by 100.