AMozilla Firefox
BGIMP
CMS Office
DGNU/Linux
Answer:
C. MS Office
Read Explanation:
Free and Open-Source Software (FOSS)
Free and Open-Source Software (FOSS) is a type of software that gives users the freedom to run, copy, distribute, study, change, and improve the software. This is in contrast to proprietary or closed-source software, which is licensed under exclusive legal right of the copyright holder.
Mozilla Firefox: This is a free and open-source web browser. Its source code is publicly available, and anyone can inspect, modify, and distribute it.
GIMP: Standing for GNU Image Manipulation Program, GIMP is a free and open-source image editor. It's often seen as a free alternative to Adobe Photoshop.
GNU/Linux: This is a family of free and open-source operating systems. The most well-known examples are distributions like Ubuntu, Fedora, and Debian. The source code for the kernel (Linux) and the system utilities (GNU) is freely available.
MS Office: This is proprietary software developed and sold by Microsoft. The source code is not publicly available, and users must purchase a license to use it.