Concept:DVD stands for a standard optical disc format used to store digital data, especially video.Explanation:The full form of DVD is Digital Versatile Disc.It is also sometimes referred to as Digital Video Disc.DVD is an optical disc storage media format developed in 1995.Its main purpose is to store video and large amounts of data.DVDs have the same physical size as compact discs (CDs), but they can store up to six times as much data.Answer:Correct option: D. Digital Versatile Disc.