Since 1963 Prices Have Risen Every Year

Multiple Choice

Since 1963 prices have risen every year.As a result,the price of the poverty "basket" has risen as well.In 2009 it cost roughly $22,000 to purchase those same basic necessities for a family of four that cost only $3,000 in 1963.
-Which of the following explains why the U.S.poverty threshold increased from $3,000 per year in 1963 to $22,000 per year in 2009?

A) Americans are more spoiled now than they were in 1963.
B) The threshold includes more luxury items now than it did in 1963.
C) Inflation has caused the price for basic necessities to increase since 1963.