A
1. How is Maoism different from the communism of Karl Marx?

Maoism was a movement for the farming classes.

Explanation:

Karl Marx's communism appeals to poor industrial workers in the city--their work produces wealth, so they should have a greater share of it. Maoism focuses on rural farmers instead: Maoists don't believe cities should have all the wealth for themselves.

byzantine empire is the answer i think you are looking for.

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offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering