At the time, the US was trying to practice Isolationism. They refrained form signing the treaty of versailles, and thus were never involved in the League of Nations.
Answer:
a, b jus trust me who's class are you in I might be in here too
C. UNICEF
Was established as an independent local non-governmental organization
Answer: focus groups
Explanation:
A focus group is a gathering of deliberately selected people who participate in a facilitated discussion intended to elicit consumer perceptions about a particular topic or area of interest. These discussions should be held in an environment that is non-threatening and receptive.