Pixels and Digital Image Resolution

The governing distinction is the medium and production process, not whether an artwork contains colour or communicates an image. Digital art is created, edited, stored, or displayed with electronic technologies such as a computer, tablet, stylus, phone, or digital screen. It may imitate painting, drawing, collage, or photography, but its working surface and tools are digital. Therefore option A is correct because it identifies the possible use of electronic tools and screens. Option B is false because digital works can use many colours. Option C is false because producing images is central to digital art, and option D confuses visual art with singing. The distinction concerns tools and medium.

Digital displays use the additive RGB system. Each pixel normally contains red, green and blue subpixels whose brightness levels are varied and combined to create many perceived colours. When the three channels are strong, the result approaches white; when they are off, it approaches black. CMY is mainly associated with subtractive printing, not standard screen subpixels.

A pixel (picture element) is the smallest visible dot or unit of a digital image. Many pixels, each with its own colour and brightness, combine to form the complete picture. A brush is a tool for creating art, not a pixel. Exam tip: When an image is highly zoomed in, the tiny coloured squares you see are pixels.