16. Why did some people in the United States not support the alliance with the Soviet
Union during World War II?
17. What was the Domino Theory? What did the United States government fear would
happen if a country became communist?
18. Describe the United States policy of containment.
19. Why might someone who believes in the Domino Theory support the Truman
Doctrine?

google has the answer

explanation:

i searched your question up and it showed me the answer

the answer wold be b) travel among nations should be regulated by an international organization

the phenomenon that would be cited as evidence of increased economic interdependence between europe and the americas is  the development of mercantilism.

this theory suggests that the wealth of a country depends on its economic assets, or capital.

hope this : )