True, the ancient Byzantium were soon to be called the Ancient Romans when the Byzantine Empire fell.
Hope this helps! :)
The last one (you wrote b but I think you meant e?) I think.
Rayograph is a process invented by Man Ray. He lived in NY during the early 1900s. He helped form the Dada Movement, which influenced later art styles, including Surrealism.
Surrealism is a form of art, influenced by the Dada movement, that focuses mainly on fantastic or dream-like imagery.