The correct answer is: B. Windows 2000.
Windows 2000 was the first version of Windows to support 64-bit processors. It was released in 1999 and was a major upgrade from Windows NT 4.0. Windows 2000 was designed to be a reliable and secure operating system for businesses. It included a number of new features, such as support for multiple processors, Active Directory, and the Internet Information Services (IIS) web server.
Windows 98 and Windows 95 were both 32-bit operating systems. They were released in 1998 and 1995, respectively. Windows 98
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