Sun Microelectronics Custom-Orders Processors, Chips, and Circuit Boards for Sun's

Sun Microelectronics custom-orders processors, chips, and circuit boards for Sun's desktop, server, and storage products. Sun doesn't actually make any of its microelectronic gear itself. Sun contracts the work to outside manufacturers, who in turn rely on components from their own subcontracted suppliers. The 150 suppliers involved in making and delivering Sun products have adopted mutually beneficial objectives and strategies that give Sun's customers value for their money. Sun's method of doing business is an example of a:

A) supply partnership.
B) double-deal.
C) conflict of interest.
D) restricted access.