Anthropology focuses on "nonliterate" societies because: they are rapidly disappearing
they are more diverse
they are easier to analyze
they are older

A. they are rapidly disappearing is the correct answer.

Explanation:

of what agreement it does not show

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.