What is defined as a visual representation produced on a surface?

The correct choice, which is "Image," encompasses a broad range of visual representations that can be produced on various surfaces, including paper, screens, and other materials. An image can be a photograph, a digital graphic, or any visual depiction created through different mediums. This term is often used in both artistic and technological contexts, making it a fitting descriptor for a visual representation.

In contrast, while drawing, illustration, and portrait are also types of visual representations, they are more specific. A drawing typically refers to a representation made with tools like pencils or charcoal; an illustration usually conveys a particular concept, often used in books or publications; and a portrait specifically depicts a person or group, focusing on their likeness. Thus, while all these options relate to visual art, "Image" serves as the most general and inclusive term.