Which statement is the most accurate?

a) The standard of living of poor American children is very low compared to that of middle-class American children.

b) Poor children in the United States are much worse off than poor children in virtually all other OECD countries.

c) Poor children in the United States are much better off than poor children in virtually all other OECD countries.

d) There is no way to compare the degree of child poverty in the United States with the degree of child poverty in other economically advanced countries.