Which of These Statements Is True Concerning Court Cases About

Which of these statements is true concerning court cases about discrimination?

A) Brown v.Board of Education upheld the principle of "separate but equal."
B) The Bakke case outlawed affirmative action across the board.
C) In the 2004 Holtz case,the Supreme Court ruled that "race-conscious" admissions policies are unconstitutional.
D) In the recent University of Michigan cases (Gratz and Grutter) ,the Supreme Court upheld a moderate,flexible affirmative action program and rejected a rigid one.