Comparisons of Birth Outcomes for African American Mothers, Mothers from Africa

Comparisons of birth outcomes for African American mothers, mothers from Africa new to America, and African immigrants who have lived in America for one generation suggest that:

A) after one generation, infants are nearly never born prematurely or at low birthweights.
B) low birth weight among Black people is NOT genetically driven.
C) African Americans are genetically distinct from Africans.
D) Africans are biologically protected from low birth outcomes.
E) there is no difference between these three groups in terms of birth outcomes.