The Table Below Shows the Approximate Value of Canada's Crude

Multiple Choice

The table below shows the approximate value of Canada's crude oil and natural gas exports over a 5-year period.The amounts shown are billions of dollars.
TABLE 2-7
-Refer to Table 2-7.Assume that 2009 is the base year,with an index number = 100.What is the index number for the value of crude oil exports in 2012?

A) 1.72
B) 30.5
C) 171.8
D) 30.5%
E) 0.31