Answer:
The American Revolution was principally caused by colonial opposition to British attempts to impose greater control over the colonies and to make them repay the crown for its defense of them during the French and Indian War (1754–63).
The result of the Korean war was a stalemate - so noone won. That's why options A, B, and C are not correct.
D is correct- the containment of the spread of Communism was successful.
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