People in Affluent Countries May Not Be Getting Any Happier

Multiple Choice

People in affluent countries may not be getting any happier over time because

A) people greatly value the luxuries they have and what matters is absolute income
B) people begin taking luxuries for granted and income does not matter
C) what matters is relative income and perceptions of luxuries do not matter
D) people begin taking luxuries for granted and what matters is absolute income
E) people begin taking luxuries for granted and what matters is relative income