Which of the following systems of trade was most widely used in both ancient river civilizations and ancint native american civilizations. a: bartering b: the exchange of coined money c: free exchange d: international trade

Bartering

Explanation:

The ancient civilizations started bartering at the dawn of civilization. it is interesting that similar things can be found on the soil of American continent.

When they were in need of some certain product they didn't have, they would enter the bartering by offering some other products they had in exchange.

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

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