What action did congress take to help ensure the military reconstruction act was enforced

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Explanation:

In early 1866, Congressional Republicans, appalled by mass killing of ex-slaves and adoption of restrictive black codes, seized control of Reconstruction from President Johnson. ... The 14th Amendment also reduced representation in Congress of any southern state that deprived African Americans of the vote.

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affirmative action refers to the policies that take gender, race, or ethnicity into account in order to promote equal opportunity.

employers subject to title vii are prohibited from taking race or sex into account in any employment decisions. aa is a penalty for having any job group substantially statistically "underutilized" in any race or either sex. the employer must take steps to eliminate the underutilization, then stop, ending its aa efforts

d is the best answer for this question.