When does a decorative pattern become meaningful visual language?

When it repeats or strengthens the idea of subject

A decorative pattern becomes visual language when it communicates or supports an idea instead of existing only as empty ornament. Repeated shapes, lines, colours, or motifs can suggest a culture, mood, movement, theme, or symbolic meaning. When the pattern echoes the subject, it helps viewers understand what the artwork is saying and can strengthen its unity. Decoration is therefore meaningful when it performs a communicative role.

Option C gives this relationship accurately: the pattern repeats or reinforces the subject’s idea. A pattern that merely fills space may add surface interest, but it does not necessarily communicate meaning. Covering important text interferes with communication, and directly conflicting with the main subject may distract the viewer unless that conflict is deliberately used. In the situation described, strengthening the subject is the clearest basis for meaningful visual language.

This is a Class 10 Art Education question. Chapter: Fundamentals of Visual Arts. Topic: Elements of Art.