The Table Below Shows Hypothetical Per-Minute Cell Phone Charges for "Pay-And-Talk

Multiple Choice

The table below shows hypothetical per-minute cell phone charges for "pay-and-talk" service over several years.
TABLE 2-2
-Refer to Table 2-2.Assume that 2008 is used as the base year,with the index number = 100.The value of the index number in 2011 is calculated as follows:

A) 0.35 × 100 = 35.
B) 0.35/0.55 = 0.64.
C) 0.55/0.35 = 1.57.
D) (0.35/0.55) × 100 = 63.64.
E) (0.55/0.35) × 100 = 157.14.