Please answer the following question: Information: - The X Window System (X11, or shortened to simply X) is a windowing system for bitmap displays, common on UNIX-like computer operating systems. - An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function. - XFree86 was an implementation of the X Window System. It was originally written for Unix-like operating systems on IBM PC compatibles and was available for many other operating systems and platforms. It is free and open source software under the XFree86 License version 1.1. It was developed by the XFree86 Project, Inc. The lead developer was David Dawes. The last released version was 4.8.0, released December 2008. The last XFree86 CVS commit was made on May 18, 2009; the project was confirmed dormant in December 2011. - IBM PC compatible computers are those similar to the original IBM PC, XT, and AT, able to run the same software and support the same expansion cards as those. Such computers used to be referred to as PC clones, or IBM clones. They duplicate almost exactly all the significant features of the PC architecture, facilitated by IBM's choice of commodity hardware components and various manufacturers' ability to reverse engineer the BIOS firmware using a "clean room design" technique. Columbia Data Products built the first clone of the IBM personal computer by a clean room implementation of its BIOS. - David Dawes ( born 3 December 1964 ) , is one of the founders of the XFree86 project . He was one of four people who started it in 1992 ( together with David Wexelblat , Glenn Lai , and Jim Tsillas ) , and became the project president in 1994 . The XFree86 Project used the MIT / X11 license until 2004 , when Dawes , as the XFree86 president , decided to license XFree86 4.4 under the newly devised XFree86 License 1.1 . The new license includes a '' credit clause '' similar to the old BSD License advertising clause . The Free Software Foundation determined that the new license was incompatible with the version 2 of GNU GPL . The move was protested by free software leaders such as Richard Stallman and Theo de Raadt . While Dawes explained this as an attempt to make sure the XFree86 developers get their due credit ( apparently in response to the Xouvert fork ) , the decision was contested in the XFree86 community , notably by Jim Gettys and Keith Packard , and the dissenters subsequently forked the project into the X.Org Server . The fork superseded XFree86 , as other projects found the new license unacceptable . Dawes still heads the XFree86 Project and maintains XFree86 without corporate sponsorships ; however , the last release of the software was in 2008 . Dawes also runs his own small private company called X-Oz Technologies , which provides project management and consulting services . After reading the paragraphs above, we are interested in knowing the entity with which 'david dawes' exhibits the relationship of 'occupation'. Find the answer from the choices below. Choices: - architecture - computer - engineer - president
Answer:
engineer