Which of the Following Measurement Issues Makes Interpretation of U

Which of the following measurement issues makes interpretation of U.S. poverty rates difficult?

A) Poverty statistics measure consumption rather than income, and some families may receive income that is above the official poverty line.
B) The high cost of living in urban areas tends to result in the understatement of poverty.
C) Most people below the poverty line have substantial unreported income.
D) The poverty rate is adjusted for every urban and rural area, so people's poverty status changes whenever they move.