The correct answer is B) create an international peacekeeping organization.
President Roosevelt believed that the best way to prevent future wars was to create an international peacekeeping organization.
Indeed, he was the one who coined the name for this king of organization: the United Nations. It was created on January 1, 1942, in the time of World War II. But it was until June 1945, that 50 countries signed the charter and the United Nations (UN) formally started operations on October 24, 1945.
