Which of the following is a short piece with catchy repetition, often used in advertisements?

A jingle is a short musical piece that incorporates catchy repetition, making it memorable and engaging, which is particularly effective in advertisements. The repeated melody and lyrics can stick in listeners' minds, encouraging brand recall and positive associations with the product or service being advertised. The unique combination of music and rhymes helps to create an emotional connection and enhances the effectiveness of the marketing message.

While taglines, hooks, and slogans are also used in advertising, they do not typically involve a musical component. A tagline is a brief phrase that encapsulates the essence of a brand or campaign but is not necessarily musical. A hook often refers to a catchy part of a song or a phrase that grabs attention but may not be specifically related to advertisements. A slogan, similar to a tagline, is a concise statement that communicates the key message or value of a brand but again lacks the musical quality that characterizes jingles. Thus, the defining feature of a jingle is its catchy, musical repetition, making it the correct answer.