Which one of these is an example of AI tool used for graphic design?

The chosen answer, Canva AI, is an example of an AI tool specifically designed for graphic design. Canva offers a user-friendly platform that incorporates artificial intelligence to help users create visually appealing graphics, whether it's for social media posts, presentations, or other digital content. The AI features streamline the design process by suggesting layouts, color schemes, and even generating designs based on user inputs, making it accessible for both novice and experienced designers.

In contrast, ChatGPT is primarily a language processing tool focused on generating text and facilitating conversational interactions, so it does not serve the specific needs of graphic design. Otter.ai is designed for transcription purposes, helping users transcribe spoken words into text, without features tailored to graphic design. DALL·E, while also an AI tool related to visual content generation, is primarily focused on creating images from text descriptions, rather than serving as a straightforward graphic design platform like Canva. Therefore, Canva AI stands out as the most relevant tool for graphic design among the given options.