Which of the following nations became part of the southeast asian treaty organization (seato) ?
(select all that apply)

a. new zealand
b. united states
c. south korea
d. japan
e. united kingdom
f. indonesia

Correct answer choices are :

In just several short years after World War II, the U.S. fought to defend democracy in South Korea. Meanwhile, Communist China backed personally by the Soviet Union, fought for a communist North Korea. The Korean War indicated the start of the long-standing U.S. policy of containment, which operated to make sure that the impact of socialism did not expand to other parts of the world. Events in the post-war years eventually begin to the establishment of the Southeast Asia Treaty Organization (SEATO).

this isn't a question and if you're going to list things be kind and use commas.

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939