What was the most significant aspect of Henry Ford s assembly line process?

A.
It used less energy and created less pollution than other factory processes.
B.
It created labor unions to advocate for employers working in large factories.
C.
It reduced production costs, which allowed the products to be more affordable.
D.
It made it possible to hire more employees, which helped restore the economy.

D, everyone just did the one small job day and day.