User Persona.
A user persona is a fictitious representation of a group of users, created to help designers understand the needs, behaviors, and motivations of their target audience. User personas are based on research data and represent a typical user in the target audience, including details such as age, gender, education level, goals, challenges, and preferences. User personas are often given a name and a photo to make them feel more real, and they are used throughout the design process to ensure that the design meets the needs of the target audience. Therefore, the correct answer is User Persona.