Why was the early west considered a "crossroads of culture"? -

a mexico originally owned the land, so the cultures of americans, mexicans, and native americans were all present in the west.

b the california gold rush brought in people from all over the world, which resulted in cultural diffusion among the settlers there.

c california was known to accept many forms of religion and ethnicities, so people from different cultures migrated there to start new lives.

d those settlers who brought slaves with them to the west created cultural interactions between native americans, african americans, and themselves.