With Regard to Race and Mental Disorders, Which of the Following

With regard to race and mental disorders, which of the following statements is true?

A) Racial hostility affects the psychological well-being of African Americans but not that of whites.
B) Racial hostility affects the psychological well-being of African Americans and whites.
C) Racial hostility affects the psychological well-being of lower class African Americans but not African Americans of any other social class.
D) The research findings regarding the effects of racial hostility on the well-being of African Americans and whites cannot be determined.