In the United States, people with higher incomes have a more positive assessment of their personal health than people with low incomes.
A. People with low incomes in the United States have the same assessment of their personal health as people with higher incomes
B. Personal health assessment is not related to income level in the United States
C. Personal health assessment is not influenced by socioeconomic status
D. Personal health assessment is only determined by individual factors and not by societal factors.