Established a social hierarchy that placed Mongols at the top and the Chinese peasantry at the bottom.
The answer I think it may be is C but not to sure.
Check for stop signs and or traffic lights. If walking look both way before crossing
Cognitive is the answer. This is because she analyzed to what career path that she wants to take. She used her mind and idea to decide her future career. This is useful for decision making because it uses the role of the brain.