4.in the case of the us supreme court states that some kinds of affirmative action systems were unacceptable.
a. scott vs negro ben
b. dred scott vs sandford
c. brown vs board of education
d. plessy vs ferguson
e. uc regents vs bakke

e. uc regents vs bakke

Explanation:

This rulling allowed race to be one of several factors in college admission policy, in 1978, around a decade after the segregation had been outlawed. However, while schools were motivated by the authorities to integrate, affirmative action steps such as the proposed by the regents of the University of California, that desired to set aside 16% of the seats to black students were deemed unacceptable by the US supreme court.