What is it called when people move from one country, region, or place to
another?
o
a. population
o
b. migration
o
c. export economy
o
d. trade patterns

b migration

Migration, or B.

Explanation:

I think it's illegal to export people, population doesn't make sense for this question, and TRADE PATTERNS, why are we trading people

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering