The correct answer is A. Windows NT.
Windows NT is a family of operating systems developed by Microsoft. It was first released in 1993, and it is the successor to the MS-DOS and Windows 3.x operating systems. Windows NT is a 32-bit operating system, and it is available in both client and server versions.
Windows NT supports operating system virtualization, which allows multiple operating systems to run on a single computer. This can be useful for running different applications that are not compatible with each other, or for testing new operating systems.
Sun Solaris is a Unix operating system developed by Sun Microsystems. It was first released in 1985, and it is one of the most popular Unix operating systems. Solaris is a 32-bit and 64-bit operating system, and it is available in both client and server versions.
Solaris does not support operating system virtualization.
Windows XP is a discontinued operating system developed by Microsoft. It was first released in 2001, and it was the successor to Windows 2000. Windows XP is a 32-bit operating system, and it is available in both home and professional versions.
Windows XP does not support operating system virtualization.
Compliance is the act of meeting or exceeding requirements. In the context of information technology, compliance refers to the act of meeting or exceeding the requirements of laws, regulations, and standards.
Compliance is not an operating system.