What do nativism cultural preservation and assimilation have to do with each other

They all are focused around the the saving or preservation of one's culture, which is seen as superior to others, or they have the ideals of getting rid of others that are now like them.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

not to sure thinking it would be a hope this