Which definition best fits affirmative action?

Question $1$ options:

A$)$ Affirmative action gives those who were historically discriminated against a chance of being hired.

B$)$ Affirmative action gives those who were historically discriminated against an equal chance of being hired.

C$)$ Affirmative action gives all an equal chance of being hired.

D$)$ Affirmative action gives those who were historically discriminated against an unequal advantage of being hired.