The Table Below Shows Vietnam?s Price Index Between 2004 and 2007

Multiple Choice

The table below shows Vietnam?s price index between 2004 and 2007. $$\begin{array} { | l | l | } \hline \text { Year } & \text { Price Index } \\\hline 2004 & 115.15 \\\hline 2005 & 124.65 \\\hline 2006 & 134 \\\hline 2007 & 145.12 \\\hline\end{array}$$ From the data, we can conclude that

A) the inflation rate 2005 and 2006 was 7.5 percent.
B) commodity substitution bias occurred over the four years.
C) food and energy prices in Vietnam were increasing between 2004 and 2007.
D) deflation occurred between 2005 and 2006 as price increased more slowly than in 2004.