Answer:
it's b. none of these answers are correct
Sputnik I was the world's first ever artificial satellite that launched by the Soviet Union in 1957. This marked the start of the "space age" which pushed the race between the US and the USSR in the field. Because of this "competition", many scientific discoveries were made to study and even travel to outer space.
Answer: The "second" Continental Congress
The statement is referring to Korea. Capitalist South Korea thrived in the economy, while its northern communist neighbor, which followed a policy of isolationism, declined in most aspects.
