For the Following Distribution, How Many People Had Scores Less $\begin{array}{cc}\mathrm{X} & \mathrm{f} \\\hline 20-25 & 2 \\15-19 & 5 \\10-14 & 4 \\5-9 & 1 \\\hline\end{array}$

For the following distribution, how many people had scores less than X = 19? $\begin{array}{cc}\mathrm{X} & \mathrm{f} \\\hline 20-25 & 2 \\15-19 & 5 \\10-14 & 4 \\5-9 & 1 \\\hline\end{array}$

A) 5
B) 10
C) 11
D) cannot be determined