What major difference separates the Federalist and Antifederalist?

 Some states wanted a strong, central government. The citizens that shared this idea were called Federalists. The citizens that opposed the idea of one principal government were the Antifederalists, who supported the idea of small, state governments.

Explanation:

location is the answer to this

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering