Hi. I think the details of what the author said were not included in your post. I researched and found similar question but with the additional information. Here's my answer:
According to the author, the conditions in Europe during 800's was chaotic. The Frankish Empire was disintegrated to federation of feudal lords, Church did not have power, knights forcing the peasants to pay taxes. Muslims controlled Spain.
The correct answer is: D) American farms and factories raised production levels.
Countries were able to buy US goods as a result of the economic stimulation of Europe which caused US farms and factories to ramp up production.
The Atlantic Charter can be seen as a statement of intention and vision: the intentions of the leaders of the UK and the US about the world after the World War.
Specifically, they believed in the self-determination of the countries, which means that the countries would have the right to govern themselves.
They indented this Charter to apply to Europe only,for example Poland, but later the African countries used it as an argument for de-colonisation.
