Which of the following statements are true?

A: There are substantial racial disparities in household income in the United States
B: There are no racial disparities in income in the United states
C: White people have the highest average household income in the United states
D: Racial disparities in income in the united states have narrowed considerably in the last 50 years

A: There are substantial racial disparities in household income in the United States

C: White people have the highest average household income in the United States
D: Racial disparities in income in the United States have narrowed considerably in the last 50 years