How did the Korean War change nothing in terms of the Cold War?

a.
Communism stayed where it was and the borders between North and South Korea were the same.

b.
The U.S. and Soviet Union still disliked each other and had different ideologies.

c.
China essentially impacted very little in this conflict and had no impact.

d.
The Soviet Union did not care about this conflict and spreading communism in Asian nations. They viewed this as China's responsibility.