Final answer:
The correct answer is options A, D, and E. Features of addictive design include increasing rewards for more engagement (A), penalties for leaving the app (D), and autoplay with countdown features (E), which promote continuous use.
Step-by-step explanation:
Features of addictive design include mechanisms that reward users for playing more or using the app more frequently. These rewards tend to increase the more you engage with the app or platform. Additionally, penalties for leaving the app or ceasing usage can contribute to a user feeling compelled to continue using the app. Autoplay and countdown features are also characteristic of addictive design as they encourage continued engagement without breaks, often by automatically starting the next video, game level, or activity.
Options B, C, F, and G do not represent features of addictive design. In fact, they are often part of a conscientious design approach intended to give users more control over their app usage and to promote healthier interactions with technology.