How did the regents of the university of california v. bakke supreme court decision

How did the regents of the university of california v. bakke supreme court
decision affect affirmative action programs in the united states?
o
a. it ruled them unconstitutional but did not establish a lasting
precedent.
o
b. it outlawed them for white americans but not for african
americans.
o
c. it placed restrictions on them but did not outlaw them completely.
d. it required them to be used in public universities but not in private
businesses.