The correct answer is D. As their incomes rise, people spend more on food, but it represents a smaller portion of their income.
The graph shows the relationship between "food spending and percent of income spent on food". In the left part, it shows the values of "Average annual food spending ($) that go from 0 to 16,000. In the right part, it shows the values of Percent of income spent on food" that go from 0 to 35. In the part below, five "income quintiles" are shown.
The first (lowest) quintile spends about $ 4,000 per year on food, which is 35% of income.
The second quintile spends about $ 6,000 per year on food, which is about 18% of income.
The third quintile spends about $ 7,000 per year on food, which is about 12% of income.
The fourth quintile spends a little less than $ 10,000 per year on food, which is about 10% of income.
The fifth (highest) quintile spends a little less than $ 14,000 per year on food, which is about 7% of income.
According to the above information, the reader can establish that people who have more income spend more on food. However, this represents a lower percentage of their total income. For example, people who spend just under $ 14,000 on food are spending about 7% of their income, while people who spend about $ 4,000 per year on food are spending 35% of their income. According to the above, the correct answer is D. As their incomes rise, people spend more on food, but it represents a smaller portion of their income.
