Effective in the 2000 Census, the Classification of Data Based

Effective in the 2000 Census, the classification of data based on race and ethnicity changed the way people were categorized in which of the following ways?

A) Five categories were included for race: American Indian, Asian, Black, Pacific Islander, and White.
B) Two categories were added for data on ethnicity: Hispanic or Latino.
C) Another category was included, "some other race," for people unable to identify with any of the five categories of race that was listed.
D) All of the above.