What item dictates the relative distance between shots?

The correct choice highlights the importance of subject matter in determining the relative distance between shots. Subject matter refers to what is being filmed—its characteristics, visual context, and how the elements within the frame interact with one another. When planning a shot, the subject matter influences not only the composition but also the perceived spatial relationship between different elements in the scene. For instance, close-ups of a subject typically convey intimacy or detail, while wide shots can establish context or distance.

The other choices do play significant roles in filmmaking but do not directly dictate the distance between shots. Camera angle affects perspective and can influence how subjects are perceived in relation to one another, but it does not inherently set the distance. Lighting setup is crucial for visibility and mood but does not influence how far away or close a camera should be positioned for a particular shot. Sound quality, while essential for overall production value and storytelling, relates more to audio clarity and impact rather than the visual composition and spacing of shots. Thus, the subject matter is the fundamental aspect that governs how shots are framed concerning each other.