Which factor has played the most important role in changing the way history is studied over time?

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.

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.

c) all of the above