Proportion

Correct answer: A. When expression, satire, or stylization is the purpose

Explanation: Proportion normally helps an artwork look believable and coherent, but artists may intentionally alter it to communicate an idea or feeling. Enlarging, compressing, or otherwise distorting a shape can express emotion, create satire, emphasize identity, or produce a stylized visual language. Option A is correct because the distortion is guided by a clear artistic purpose. B and C require dependable realism or recognition, so deliberate distortion may interfere with those goals. D describes an accidental error, not a considered artistic decision; intention and context distinguish expressive distortion from poor observation.

Correct answer: A. To emphasize character feature and humour

Explanation: A caricature uses selective exaggeration rather than neutral realistic measurement. Enlarging the head can make a recognizable facial feature, expression, hairstyle, or personality characteristic more prominent. The distortion may also create humour or a critical comment, depending on the artist’s intention and the surrounding context. Option A is correct because it identifies emphasis and humour as likely purposes. B is opposite to caricature’s method, since the enlarged head does not maintain realistic proportion. C is impossible in visual terms, and D changes the focus away from the deliberately emphasized character.