Below Are Listed the Numbers of Children in the Classrooms $\begin{array}{l|l}1 & 12,14 \\2 & 20,21,27 \\3 & 30\end{array}$

Multiple Choice

Below are listed the numbers of children in the classrooms of a small elementary school. Choose the correct stemplot of the data.
12, 14, 20, 21, 21, 25, 27, 30, 30, 30

A)
$\begin{array}{l|l}1 & 12,14 \\2 & 20,21,27 \\3 & 30\end{array}$
B)
$\begin{array}{l|l}1 & 2 \\2 & 5 \\3 & 3\end{array}$
C)
$\begin{array}{l|l}1 & 24 \\2 & 01157 \\3 & 000\end{array}$
D)
$\begin{array}{l|l}1 & 24 \\2 & 0157 \\3 & 0\end{array}$