`President and British Prime Minister met and developed the , a joint declaration of created by the U. S. and Britain in opposition to the Axis powers.

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Explanation:

President Franklin D. Roosevelt and British Prime Minister Winston Churchill met and developed the Atlantic Charter, a joint declaration of created by the U.S. and Britain in opposition to the Axis powers.

You can learn more about the Atlantic Charter at https://www.history.com/topics/world-war-ii/atlantic-charter .

following type of cultural development caused people to want and buy new products on the market :

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