Which of the following is a primary concern of production design?

The primary concern of production design revolves around creating the visual environment and style of a film. This aspect of filmmaking encompasses the overall look of the movie, including the settings, props, colors, and the arrangement of elements within a scene. Production designers work to establish a cohesive visual narrative that supports the story, enhances the mood, and reflects the characters’ journeys. They collaborate closely with directors and cinematographers to ensure that the aesthetic choices align with the film's themes and tone.

In contrast, the other options focus on different areas of filmmaking. Choosing the film's actors pertains to casting, which is a separate function that deals with performances rather than the visual aesthetic. Editing film sequences is concerned with the post-production process, shaping the narrative flow and pacing rather than the initial visual conception. Writing the screenplay involves crafting the story and dialogue, which is essential but distinct from the visual aspects that production design addresses. Hence, B accurately captures the core responsibility of production design within the filmmaking process.