Which of the following can be described as removing limitations on iOS?

Jailbreaking is a process that allows users to remove certain restrictions imposed by Apple on iOS devices. By jailbreaking an iPhone or iPad, a user gains access to the root filesystem and can install applications that are not available through the official App Store, customize the user interface, and modify system settings that are typically locked down.

This capability is especially significant because Apple enforces strict control over its devices to maintain security and stability. Jailbreaking is often sought after by users who desire more freedom to personalize their devices or to use software not approved by Apple.

The other options listed do not pertain to the removal of restrictions on iOS. Rooting, while similar, generally refers to Android devices. Geotracking involves using GPS to monitor a device's location, which does not relate to removing limitations. AV software, or antivirus software, focuses on protecting devices from malware and does not involve modifying operating system restrictions.