Answer:
introduces a list, explanation, or quotation that follows an
independent clause.
Explanation:
They all worked in similar rooms. Doctors in the 1700s were beginning to learn proper sanitation techniques like handwashing.
I’d say the answer is A, it plays on fear of new technology
Ray Bradbury was always scared of the future. Books that he wrote including the Pedestrian and Fahrenheit 451, were about the future and what it will become. I believe that if Ray Bradbury were alive today, he would feel very strongly about limiting our use of technology.
Hope this helps! Have a great day :)
