Which of the following is not a high-speed Internet assess service? A. ADSL B. G.Lite C. PnP D. G.DMT Solution Answer C is the correct answer. PnP is the Plug and Play standard developed by Microsoft for the automatic recognition and configuration of PnP-compatible installed devices. Answers A, B, and D are all variations of DSL types of services and are therefore valid types of high-speed Internet access service offerings, making those answers incorrect..