In a computing context, which is a feature of User Account Control?

User Account Control (UAC) is a significant security feature in Windows operating systems that helps to prevent unauthorized changes to the system. By prompting users for permission or an administrator password when administrative actions are required, UAC plays a critical role in managing how software installations and system changes are handled.

The feature ensures that users are informed about any changes that could affect system integrity, helping to elevate the user's privileges only when necessary. This safeguards the system against unintentional changes or malicious software trying to execute tasks without proper user consent.

While limitations on network access, alerts for software integrity issues, and protocols for data encryption are important security concepts, they do not directly relate to the specific functionality of UAC in managing user permissions, notifications, and system-level changes. Thus, C is clearly the best answer as it captures the essence of what User Account Control is designed to do within the operating system.