Recall That in a Study by Charles Bond Et Al

Recall that in a study by Charles Bond et al.(1988) ,the treatment of mental health patients by the staff was examined,and the staff was found to use harsher penalties for violent behavior by black patients than for whites (straitjackets and drugs as opposed to time-outs) .This treatment is discriminatory because

A) the black patients were treated more negatively than the white patients.
B) the white patients were given special privileges.
C) there was no difference in the number of violent incidents caused by blacks and by whites.
D) the mental patients were treated in a harsh and demeaning manner.