Hi there! The answer is A.
The united states is not a member of the Warsaw pact. The Warsaw pact was a treaty among the Soviet Union and seven of it satellite states in Eastern Europe. The US didn't participate in this treaty because they did not support communism.
Answer:
While C and D are likely answers, D seems more probable since an immigrant would naturally want to settle in a country with high growth and they would in turn contribute to said country's growth.
