Final answer:
A user persona is a description of a hypothetical, generic person representing a group of users, used for design and marketing purposes.
Step-by-step explanation:
The correct answer is C. A description of a hypothetical, generic person.
User personas are fictional characters that represent the characteristics, behaviors, and needs of a specific group of users. They are created to help designers, developers, and marketers understand their target audience and make informed decisions during the product development process.
For example, in website design, user personas can provide valuable insights into how different user types navigate the site, what features they find important, and what challenges they may face. This information helps create a user-centered design that meets the needs of the target users.