If a children’s book has too many sharp and scary shapes, which design decision may be wrong?

Correct answer: Selecting shapes unsuitable for the target audience.

Direct answer: A is correct. Every design should be judged in relation to its audience, purpose and intended mood. Children’s books often need visual choices that are understandable, inviting and emotionally suitable for the age group. Too many sharp, threatening shapes can suggest danger or fear and may conflict with a story or page intended to feel friendly and secure. The problem is therefore not that sharp shapes can never be used, but that their excessive or unsuitable use may ignore the target audience. B generally supports reading by preventing text from becoming crowded. C generally helps children recognise objects and follow the images. D generally improves legibility when text and background are clearly separated. A common confusion is to treat a design element as universally good or bad; its effect depends on context, quantity and audience.