Yifen lives in a very prosperous nation. Her household income is high enough to allow her family to take a vacation to the mountains each year and pay for piano lessons for her daughter after covering food, shelter, medical care, transportation, and clothing. It exceeds the official poverty line. However, because her household income is in the bottom 10% of households in her nation, Yifen often claims that she is poor. Yifen is claiming: a. absolute poverty because she has less income than most others in her society. b. absolute poverty because her income is below an officially set minimum standard of living. c. relative poverty because her income is below an officially set minimum standard of living. d. relative poverty because she has less income than most others in her society