9. what does it mean to "repeal" a law?
a. to protest it
b. to overturn it
c. to refuse to obey it
d. to obey it grudgingly

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.

using the scientific method.