Western Governors University (WGU) ITEC2022 D386 Hardware and Operating Systems Essentials Practice Exam

The correct answer is Android because it is an open-source operating system based on the Linux kernel, which allows developers to access its source code. This means that developers can modify the code to customize features, improve performance, or create their versions of the operating system. Furthermore, Android's open-source nature encourages collaboration and innovation, enabling a wide range of applications and adaptations across different devices.

In contrast, Windows, iOS, and macOS are proprietary operating systems. Their source codes are not publicly available, which restricts users and developers from modifying or distributing the underlying code. The proprietary nature of these systems ensures that only the original developers maintain control over the software, ensuring a consistent user experience but limiting customization and redistribution by third parties.