A black and white photograph shows two men working on an early car frame in a line of cars.

Use the image to answer the question.
Which innovation does the photograph illustrate?

a. labor strike

b. power plant

c. Bessemer process

d. assembly line

1 answer

d. assembly line

The photograph shows the two men working on an early car frame in a line of cars, indicating that they are part of an assembly line process where each worker has a specific task in the creation of the car.