Find the Median for the Following Data Set $\begin{array} { l l l l l l } 34 & 30 & 25 & 15 & 20 & 20\end{array}$

Find the median for the following data set:
$\begin{array} { l l l l l l } 34 & 30 & 25 & 15 & 20 & 20\end{array}$

A) 22.5
B) 19
C) 20
D) 24.0