The iron curtain was used to emphasize the contrast between the free countries, who enforced rule with law enforcement that everyone knew of, while the soviet and their block countries were strictly ruled and enforced by the military and a "secret police."
I would go with Basketball
Computer Technology because these days people are using technology so much and the population are growing so fast so it has to be C
Hope this helps :)))
Answer:
Could we get a more specific question? That would be appreciated :D
