After World War One (WWI), Americans became mass . marketers vendors sellers or consumers?

vendors

Explanation:

After World War One (WWI) between 1914 to 1918, Americans became mass VENDORS.

This is evident in the fact that the United States started exporting various commodities such as cotton, rubber, automobiles, and various other raw materials and refined products across Europe.

This was as a result of Europe building up to another war, which later turned to world war 2.

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