Answer:
In academic writing, an argument is usually a main idea, often called a “claim ” ... papers, you will need to make some sort of claim and use evidence to support it, ...
I believe the answer is D.
According to the passage, it mentioned "...which we seek is the cooperation of free countries, working together in a friendly, civilized society." This quote describes how good and strong the Americans's morals are.
Hope this helps
Inventors (and we also need some answer choices next question