The Data in the Table Above Shows the Consumption by Item

$\begin{array} { l c c c } \hline \text { Item } & \begin{array} { c } \text { Quantity } \\\mathbf { ( 2 0 1 1 ) }\end{array} & \begin{array} { c } \text { Price } \\\mathbf { ( 2 0 1 1 ) }\end{array} & \begin{array} { c } \text { Price } \\\mathbf { ( 2 0 1 2 ) }\end{array} \\\hline \text { Salt } & 2 & \$ 1.00 & \$ 2.00 \\\text { Bread } & 20 & \$ 2.50 & \$ 3.00 \\\hline\end{array}$
The data in the table above shows the consumption by families in a small (poor) economy. The families consume only salt and bread. The reference base period is 2011.
- The CPI in 2012 is

A) 118.8
B) 100.
C) 18.8
D) 123.1
E) 23.1