The correct answer is C. Android.
Android is a mobile operating system developed by Google. It is based on a modified version of the Linux kernel and other open source software, and is designed primarily for touchscreen mobile devices such as smartphones and tablets.
Android is known for its large ecosystem of apps, games, and other content available through Google Play. It is also known for its customizable user interface, which can be changed to a great extent using launchers, icon packs, and widgets.
Android is the most popular mobile operating system in the world, with over 2.5 billion active users. It is used on a wide range of devices, from low-cost smartphones to high-end tablets.
Windows XP is a discontinued operating system developed by Microsoft. It was released in 2001 and was the successor to Windows 2000. Windows XP was a popular operating system, and was used on a wide range of devices, including personal computers, laptops, and servers. However, it was discontinued in 2014 and is no longer supported by Microsoft.
Mac OS is a line of operating systems developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple’s Mac computers. Mac OS is Unix-based and has a graphical user interface. It is known for its stability and ease of use.
Linux is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged in a Linux distribution. Distributions include the Linux kernel and supporting system software and applications packaged in a standardized format. Many Linux distributions are available, including some that are designed for desktop or server use, and some that are designed for embedded devices.