Research on African-American Children Adopted into Middle-SES White Homes During

Research on African-American children adopted into middle-SES white homes during the first year of life shows that

A) these children score similarly in IQ to children who remain in low-SES homes.
B) poverty depresses the intelligence of ethnic minority children.
C) genetic factors have a powerful impact on African-American children's IQs.
D) environmental factors have little impact on African-American children's IQs.