Which of the following is a feature of Cornerstone's user-friendly interfaces?

The option that highlights the feature of Cornerstone's user-friendly interfaces is the one that emphasizes streamlined navigation and intuitive design. This characteristic ensures that users can easily find and utilize the tools they need without going through a complicated process. Intuitive design minimizes the learning curve, allowing users to become proficient with the platform more quickly.

Streamlined navigation contributes significantly to the overall user experience by organizing information in a way that is logical and accessible. This approach not only enhances user satisfaction but also encourages engagement with the platform, as users feel empowered and supported in accomplishing their tasks efficiently.

The other options do not align with the user-friendly characteristics of Cornerstone's interfaces. Features like complex navigation, limited engagement options, and desktop-only compatibility would detract from a positive user experience, making the platform less desirable for users. In contrast, the focus on simplicity and intuitive use is central to Cornerstone's design philosophy, making it easier for users to navigate and fully utilize the system.