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. www.econstats.com
From the data, we can conclude that

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