Find the Mean of the Data in the Following Stem-And-Leaf $\begin{array} { l | l } \hline 1 & 7 \\2 & 122489 \\3 & 8 \\4 & 23\end{array}$

Multiple Choice

Find the mean of the data in the following stem-and-leaf plot. The leaf represents the ones digit.

$\begin{array} { l | l } \hline 1 & 7 \\2 & 122489 \\3 & 8 \\4 & 23\end{array}$

A) 26
B) 22
C) 27
D) 28.6