A commonly used measure of relative poverty is to categorize those with less than one-half of the population's median income as poor. Since it focuses on economic inequality based on the proportion of people who are well below the median income level, it misses

Select one:
a. income inequality comparisons across populations.
b. the effect of income on health and life expectancy.
c. economic inequality at the top half of the income distribution.
d. the effect of income on housing security.