How do specular highlights affect product photography, and how can you control them?

How do specular highlights affect product photography, and how can you control them?

• A. Specular highlights show shininess and texture; control through lighting angle, diffusion, polarizers, and careful post-processing to preserve realism.
• B. Specular highlights obscure texture and realism.
• C. Specular highlights cannot be controlled once lighting is set.
• D. Specular highlights only occur on metallic surfaces.

Answer: (D)