After North Korean forces invaded South Korea in 1950, why did the United States launch a defense of South Korea?

A. To geographically contain communism

B. To promote financial interests in the region

C. To demonstrate military superiority over China

D. To diplomatically assist fledgling democracies
(im between a and d)

A.To geographically contain communism

Explanation:

At that time United States and the Ally afraid that if Communism spread to Korea , eventually The rest of Asian region will fall under communism. This is why they sent military help to south Korea and stop the spread of the ideology right there.

Technically, this could also be considered as the act of assist fledgling democracies (Option D). But option D is a little bit inaccurate because diplomacy is an effort to maintain relationship without violent actions. So war cannot be considered as a diplomatic action.

the atm that sounds like it should be the answer

answer; self_ disclosure;