When a filmmaker uses cinematic 'mise-en-scène' to replicate the lengthy, descriptive atmospheric passages of a realist novel like Charles Dickens's 'Bleak House', they are primarily translating prose into:

Correct answer: The arrangement of props, lighting, costumes, and space within the film frame

Mise-en-scène encompasses everything that appears before the camera, including set design, lighting, costumes, and actor staging. Instead of using a narrator to state that a room is filthy or depressing, a filmmaker designs a physical set that communicates that information instantly to the viewer. This allowed cinema to develop its own visual equivalent to the rich environmental descriptions found in 19th-century realist prose.