There's no defined Primary mission, but really they're the replacement (along with NATO) to the League of Nations formed after WW1. The UN try to maintain world peace and stop terrorism. In many ways, you could call them a world police.
This activity help the children to understand the concept of
compound words. Compound words are comprise of two or more words
that are joined to make a new term with its own significance. The smaller words
that form a compound word are like mystery pieces you appropriate together to make
a new finer picture. For example snow and man, the compound word now is
snowman.
I think it’s B. It has an abundance of certain resources that create and advantage over many nations .