Which of the following best explains why communities with greater income inequality also tend to be communities with less happiness?

A) the feel-good,do-good phenomenon
B) the adaptation-level phenomenon
C) the do-good,feel-good phenomenon
D) the relative deprivation principle

The relative deprivation principle suggests that people compare their own situations to others and feel deprived or dissatisfied if they perceive that others have more resources or advantages. In communities with greater income inequality, there is a greater disparity between the wealthiest individuals and the rest of the community, which may lead to feelings of relative deprivation and decreased happiness for those who perceive themselves as having less.