Which of the following is a key benefit of using 'Managed Solutions' in Dynamics 365?

Managed Solutions in Dynamics 365 offer a crucial benefit in that they provide a controlled and versioned approach to managing customizations. This means that when using managed solutions, organizations can easily control the deployment, upgrade, and management of customizations and extensions.

With managed solutions, the changes made through customizations are packaged in a way that ensures consistency and enables easy updates. They help administrators track versions of the customizations, allowing for better governance of the application environment. This structured approach minimizes the risk of conflicts that can arise when multiple developers are working on the system simultaneously.

In addition, managed solutions are typically locked from making direct modifications to the components they include, ensuring that only the original developer or publisher of the managed solution has the ability to modify it. This enhances stability and helps maintain integrity across the deployment of applications.

Other options, such as the perception that managed solutions are free to use, or that they allow unlimited data storage, do not capture the essence of the true benefits of managed solutions. They also do not automatically enhance user productivity without additional customizations or configurations tailored for that purpose.