An organization wants to deploy a customizable operating system.

Linux is known for its high degree of customizability and flexibility, making it an ideal choice for organizations looking to deploy a customizable operating system. Unlike proprietary operating systems, Linux allows users to modify or replace almost any part of the system, from the kernel to the desktop environment and applications, to suit their specific needs.

Linux: This open-source operating system provides access to the source code, enabling extensive customization. Organizations can tailor Linux distributions to fit specific requirements, making it a popular choice for servers, specialized workstation environments, and embedded systems.

Windows 10 (A) and macOS (B) offer some level of customization but are more restricted due to their proprietary nature. Chrome OS (D) is designed for simplicity and security, focusing on web applications, which limits deep system-level customizations. iOS (E) is designed for Apple's mobile devices and is not applicable for organizational deployment beyond mobile and tablet devices; it also offers limited customization compared to Linux.