David Figlio Analysed the Scores of Some 55,000 Children in a School

David Figlio analysed the scores of some 55,000 children in a school district of Florida and concluded:

A) that black students with unusual names learn impulse control because they are racially teased or get used to white students and teachers asking about their names.
B) that black students with supposedly black-sounding names averaged lower scores on reading and math tests.
C) that black girls who are given names more common among boys are more likely to develop behavioral problems when they reach puberty.
D) that black boys with uncommon first names are more likely to drop out of school.
E) All the above