Answer:
Sandro Botticelli painted Allegory of Spring
When humans first started to appear they had yet to figure out how to farm or fish. However they knew how to hunt animals using spears and such. They also were gatherers because they gathered berries. Later in the human race farming and fishing came into play. So I say A. Hunters......Gatherers.
They were once small now they are offered in different sizes with tons of different condiments. In New England you can get saugys which are hotdogs that are super long
They felt endangered because they knew that the government would try to abolish slavery.
By birth? i think? do you mean like how did they get in a certain caste? because then it would be by birth. but if you mean like what were the castes, i forget.