Answer:
Because Communist China entered the war on North Korea's side.
Explanation:
However, as the Americans moved north toward the Yalu River, the border between North Korea and Communist China, their advance was halted when China entered the fray that fall. In late November, a massive force of Chinese troops sent the Allies into retreat. In early January 1951, the Communists recaptured Seoul, only to have the Allies reoccupy it in March.
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The frustration-aggression principle most clearly applies to individuals with higher-than-average levels of blood alcohol.
When people have more alcohol in their blood than what is recommended/allowed, they are likely to exhibit signs of aggression if they are frustrated. They might become violent if they cannot do something/something doesn't go according to their plans, which may not be the case with sober people.
The economic way of thinking is c. a biased perspective, but the existence of bias does not mean the discipline should be condemned.
<h3>What can be said of the economic way of thinking?</h3>
The economic way of thinking is biased based on the school of economics that a person subscribes to such as Keynesian or New Classical.
This does not mean that we should condemn the discipline however because it still provides valuable insights on how to allocate resources.
Find out more on the economic way of thinking at brainly.com/question/10938886
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Huh? I’d don’t understand this is this a question you got from school