Respuesta :
Answer:
d
Explanation:
i had this question and got it right hope this helps dont 4get to like and star
-mercury
Answer:
The answer is D.
Explanation:
So when the US was at war with the USSR in the Cold war this was a theory that basically said if communism topples a government then the neighboring country would also be toppled and the naming comes from the apparent domino effect as in one tumbles and the next one tumbles.