American leaders believed that the Marshall Plan D. would open new markets in Europe for goods.
<h3>What was the Marshall Plan?</h3>
It was aid given to Europe by the U.S.A. after WWII.
It was meant, amongst other reasons, to help European economies recover and not fall victim to Communism.
The Americans also hoped that with European economies recovering, they would have the buying power to purchase American goods thereby increasing American markets.
In conclusion, option D is correct.
Find out more on the Marshall Plan at brainly.com/question/1373135.
