If you are tired or just cannot seem to understand the material, a.
Read the chapter again while studying for the test
c.
Take a break and return to the chapter later
b.
Ask a friend for their notes on the chapter
d.
All of these

C. take a break and return to the chapter later

Explanation:

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

answer; one person; monarch;