Suppose 20 Voters Are Distributed at Different Positions Over the Interval

Suppose 20 voters are distributed at different positions over the interval [0, 1], as shown below. $\begin{array}{|l|l|l|l|lll|l|l|l|}\hline \text { Location } & 0.1 & 0.2 & 0.3 & 0.4 & 0.5 & 0.6 & 0.7 & 0.8 & 0.9 \\\hline \begin{array}{l}\text { Number of } \\\text { voters }\end{array} & 2 & 0 & 4 & 5 & 4 & 1 & 0 & 0 & 0 \\\hline\end{array}$ What is the median position of the voters?

A) 0.4
B) 0.5
C) 0.6
D) None of the above.