How do you see what we are studying now as a consequence of prior events and is there a relevance to today - applies nicely to the Baby Boom.

This generation of "baby boomers" was the result of a strong postwar economy, in which Americans felt confident they would be able to support a larger number of children. Boomers also influenced the economy as a core marketing demographic for products tied to their age group, from toys to records.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

b - those executed came from every social and economic class