Graphic interfaces were first used in a Xerox product called: A. InterLISP B. Ethernet C. Smalltalk D. ZetaLISP E. None of the above

InterLISP
Ethernet
Smalltalk
ZetaLISP E. None of the above

The correct answer is: C. Smalltalk

Smalltalk is a family of object-oriented programming languages and programming environments. Smalltalk was created at Xerox PARC in the 1970s by Alan Kay, Dan Ingalls, Adele Goldberg, and others. Smalltalk is known for its innovative object-oriented design, its use of a graphical user interface, and its emphasis on simplicity and ease of use.

InterLISP is a dialect of Lisp developed by the U.S. National Geospatial-Intelligence Agency (NGA) for geospatial information systems. InterLISP is used to create and manage spatial data, and to develop geospatial applications.

Ethernet is a family of computer networking technologies for local area networks (LANs). Ethernet was developed in the late 1970s and early 1980s by Bob Metcalfe and David Boggs at Xerox PARC. Ethernet is the most widely used LAN technology in the world.

ZetaLisp is a dialect of Lisp developed by Richard Stallman at MIT in the early 1980s. ZetaLisp is a pure Lisp, meaning that it does not rely on any external libraries or operating system support. ZetaLisp is used for research in artificial intelligence and programming language theory.

None of the above options are correct.