Answer:
How printing presses worked ( C )
Explanation:
The Author included picture in his article to illustrate and elaborate more on his writing about printing press and its operational services.
A printing press is technically known as a machine used to apply pressure to a surface that has ink on it. this pressure transfers the ink to the surface ( print medium) usually a cloth or paper for the purpose of printing an image or expression on it.
using Pictures in story writing or article writing has been known to be a very effective way of communicating more with the reading audience and also with the viewing audience in cases where the article is represented in a slide.
