What industry suffered the most from the expansion of railroad networks in the
1800s?

The railroad shops across North America represented a large portion of the continent's industrial capacity. ... Railroads even helped shape the physical growth of cities and towns, as steam railroads and then electric street railways facilitated growth along their lines and made suburban living feasible.

Explanation: Please mark brainliest if can :)

the language dates from the contacts of arabian traders with the inhabitants of the east coast of africa over many centuries. under arab influence, swahili originated as a lingua franca used by several closely related bantu-speaking tribal groups.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering