I think it is c. Hope this helps! #Batgirl
How did hostilities increase between U.S. and Soviet Union during 1950s? Because U.S. was in competition with Soviet Union all over the world. But hostilities increased between U.S. and Soviet Union during 1950s when Egypt seized control of Suez Canal in 1956 so the U.S. said it would defend the Middle East against communist attacks.
Native American** and its piute
A problem could've been that the Soviet Union took more than they should've. This could cause tension and lead to a war.