In considering the impact of public policies such as tax rates or divorce laws,many psychologists believe that assessments of ________ would be the most useful for guiding nations toward policies that foster human flourishing.

A) self-control
B) relative deprivation
C) subjective well-being
D) the adaptation-level phenomenon

Assessments of subjective well-being, which refers to individuals' overall evaluation of their lives and experiences, would be the most useful for guiding nations toward policies that foster human flourishing. This is because policies that increase people's sense of happiness, contentment and purpose in life are more likely to lead to long-term positive outcomes for both individuals and society, compared to policies that simply focus on economic growth or material well-being.