Which u. s. supreme court decision made it illegal to achieve diversity through the use of racial quotas?

Regents of the California University vs Bakke  is the U.S. Supreme court decision made it illegal to achieve diversity through the use of racial quotas

Explanation:

This was the decision that led to the employment of the decisions that made it illegal to achieve diversity among the population through the use of quotas allotted to the racial people.

This case was the one that decided that it was non-constitutional for universities to incur and employ the use of special quotas based on race and then fill out without considering their previous academic successes. They were unable to have special quotas which came as a result of this decision.

i think it is the third one.