The Concept of Relative Deprivation as an Explanation for Why

The concept of relative deprivation as an explanation for why more money doesn't necessarily bring more happiness suggests that people's satisfaction with their income and material possessions is

A) relative to how deprived they were in the past, particularly as children.
B) dependent on how a "good" life is defined.
C) relative to the degree of exposure to product advertising.
D) based on social comparisons rather than objective life circumstances.