Which of these would BEST describe an immediate effect of the invention and mass production of the light bulb?

Question

Responses
A time became standardizedtime became standardized
B agriculture worked longer hoursagriculture worked longer hours
C railroad companies expanded routesrailroad companies expanded routes
D longer factory hours for all workers

Answer 1

The BEST option that describes an immediate effect of the invention and mass production of the light bulb is:

D longer factory hours for all workers

The introduction of the light bulb allowed factories to extend their working hours into the night, thus increasing productivity.