When Joe Louis won the heavyweight boxing championship in 1935, many white sports journalists used the racial ideology of that era to attribute his victory to

A. the white manager and trainer, who guided Louis' development as a boxer.
B. a work ethic deeply grounded in the values of his parents.
C. the nationalist support Louis received from the American people.
D. Louis's instincts and animal-like characteristics as a black man.

Answer: D