When can a decorative border weaken the main message in a poster?

When it becomes too complex and attracts more attention than the main text

The governing concept is visual hierarchy in poster design. A poster normally has a primary message that must be read quickly, while a border is a supporting device used to frame or organize the page. If the border becomes extremely complex, dark, crowded, or visually dominant, the viewer’s attention may stop at the decoration instead of moving to the headline and essential information. Option B is therefore correct. Option A describes a useful, restrained border, not a harmful one. Option C can improve organization when the border remains subordinate. Option D also supports unity because a matching border reinforces the theme. Good design does not remove decoration completely; it keeps decoration proportionate to the communication goal.

This is a Class 9 Art Education question. Chapter: Design and Composition. Topic: Border design.