Which service allows users to back up their Apple devices?

The correct answer, iCloud, is specifically designed for backing up Apple devices. Users can automatically back up their device settings, app data, photos, and more to the cloud, ensuring that their information is stored securely and can be restored easily if needed. The convenience of iCloud allows for seamless integration with Apple devices, enabling users to access their backup from any device signed in with the same Apple ID.

This service allows for scheduled backups and does not require a physical connection to a computer, making it user-friendly for individuals who prefer to manage their backups online. Additionally, with iCloud, users can easily manage their stored data and have the ability to share it across different devices, enhancing the overall ecosystem experience.

Other services listed, like Apple Music, serve different purposes primarily related to music streaming, while iTunes is mostly focused on media management and manual backups through a computer. Apple Care, on the other hand, is a support and service plan for device issues—not a backup solution.