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Using the Data in the Above Table, the Unemployment

$\begin{array} { l c } \hline { \text { Category } } & \begin{array} { c } \text { Number of People } \\\text { (millions) }\end{array} \\\hline \text { Marginally attached workers } & 2.1 \\\text { Unemployed workers } & 12.1 \\\text { Employed workers } & 140.0 \\\text { Working-age population } & 250.0 \\\hline\end{array}$
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Using the data in the above table, the unemployment rate is

A) 9.3 percent.
B) 8.6 percent.
C) 4.6 percent.
D) 8.0 percent.
E) 4.8 percent.