Which statement best describes when visual effects are used?

• A. To record live sound on set.
• B. To print physical posters.
• C. To manage social media campaigns.
• D. For realistic composites created in post-production using computer-generated imagery.

Answer: (D)

Visual effects involve creating or integrating imagery in post-production, using computer-generated imagery to produce realistic composites. This is exactly what the option describes: realistic composites created in post-production with CGI. VFX lets filmmakers add or modify elements after filming, blending CGI with live action to achieve visuals that would be hard or impossible to capture on set. For example, adding digital environments, creatures, or complex effects that are blended into the real footage, all during post-production.

The other activities listed aren’t about this process: recording live sound happens on set and concerns audio, printing physical posters is about physical distribution or marketing materials, and managing social media campaigns is a marketing task.