Which statement describes the caste system of ancient India? A. The caste system was only in existence for a few hundred years.
B. Spiritual leaders, called Brahmins, made up the lowest class
C. A person born into one caste rarely changed castes or mixed with members of other castes.
D. Outcasts could easily move up to another caste by working hard.

C. A person born into one caste rarely changed castes or mixed with members of other castes.

Explanation:

A person is only allowed to associate with people in their own caste, it would be very difficult or impossible to mix with members of other castes. They believe that people are born into castes based off of how their behavior was in their past life, you can only change castes when you're reincarnated.

russia because it is the biggest state

the answer i chose to believe is 'harmony'