The medicine lodge treaty was primarily intended to protect native americans from whom?

Explanation:

Medicine Lodge Treaty is the name for three treaties that were established to protect Indians in the Great Plain, moving them away from European-American settlements, to protect their culture and avoid violent encounters.

b) brahmans   is nomadic society

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.