A Company Interested in the Health of Its Employees Started $\quad$

A company interested in the health of its employees started a health program including
Monitoring blood pressure.Based on age, employees were categorized according to ranges of
Blood pressure by age intervals.Data are shown in the table below. $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\text { Age }$ $\begin{array} { | c | c | c | c | c | } \hline \text { BP } & \text { Under 30 } & \mathbf { 3 0 } - \mathbf { 4 9 } & \text { Over } \mathbf { 5 0 } & \text { Total } \\\hline \text { Low } & 27 & 38 & 31 & 96 \\\hline \text { Normal } & 48 & 90 & 92 & 230 \\\hline \text { High } & 23 & 59 & 72 & 154 \\\hline \text { Total } & 98 & 187 & 195 & 480 \\\hline\end{array}$

The percentage of employees with normal or low blood pressure is

A) 67.9% (326/480) .
B) 47.9% (230/480) .
C) 41.7% (96/230) .
D) 80.0% (384/480) .
E) 20.0% (96/480) .