Table 10-4
the Country of Caspir Produces Only Cereal and Milk

Table 10-4
The country of Caspir produces only cereal and milk. Quantities and prices of these goods for the last several years are shown below. The base year is 2008.Prices and Quantities
$$\begin{array} { c c c c c } \text { Year } & \text { Price af Cereal } & \begin{array} { c } \text { Quantity af } \\\text { Cereal }\end{array} & \text { Price af Millz } & \begin{array} { c } \text { Quantity df } \\\text { Mill }\end{array} \\\hline 2008 & \$ 4.00 & 90 & \$ 1.50 & 150 \\2009 & \$ 4.00 & 100 & \$ 2.00 & 180 \\2010 & \$ 5.00 & 120 & \$ 2.50 & 200 \\2011 & \$ 6.00 & 150 & \$ 3.50 & 200\end{array}$$
-Refer to Table 10-4. This country's inflation rate from 2009 to 2010 was

A) 16.4%.
B) 24.3%.
C) 41.0%.
D) 44.7%.