Given the question: Information: - A smartphone is a mobile phone (also known as cell phones or cell mobiles) with an advanced mobile operating system that combines features of a personal computer operating system with other features useful for mobile or handheld use. Smartphones, which are usually pocket-sized, typically combine the features of a mobile phone, such as the abilities to place and receive voice calls and create and receive text messages, with those of other popular digital mobile devices like personal digital assistants (PDAs), such as an event calendar, media player, video games, GPS navigation, digital camera and digital video camera. Smartphones can access the Internet and can run a variety of third-party software components ("apps" from Google Play, Apple App Store, etc). They typically have a color display with a graphical user interface that covers more than 76% of the front surface. The display is almost always a touchscreen and sometimes additionally a touch-enabled keyboard like the Priv/Passport BlackBerrys, which enables the user to use a virtual keyboard to type words and numbers and press onscreen icons to activate "app" features. - A feature phone is a class of mobile phone; the term is typically used as a retronym to describe low-end mobile phones which are limited in capabilities in contrast to a modern smartphone. Feature phones typically provide voice calling and text messaging functionality, in addition to basic multimedia and internet capabilities, and other services offered by the user's wireless service provider.. They are also referred to as dumb phones, in contrast to smartphones. - A video game is an electronic game that involves human or animal interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor. The word "video" in "video game" traditionally referred to a raster display device, but as of the 2000s, it implies any type of display device that can produce two- or three-dimensional images. Some theorists categorize video games as an art form, but this designation is controversial. - A portable media player (PMP) or digital audio player (DAP) is a portable consumer electronics device capable of storing and playing digital media such as audio, images, and video files. The data is typically stored on a CD, DVD, flash memory, microdrive, or hard drive. Most portable media players are equipped with a 3.5mm headphone jack, which users can plug headphones into, or connect to a boombox or hifi system. In contrast, analog portable audio players play music from non-digital media that use analog signal storage, such as cassette tapes or vinyl records. - A mobile game is a video game played on a feature phone, smartphone, smartwatch, PDA, tablet computer, portable media player or calculator. - A tablet computer, commonly shortened to tablet, is a thin, flat mobile computer with a touchscreen display, which is usually in color, processing circuitry, and a rechargeable battery in a single device. Tablets often come equipped with sensors, including digital cameras, a microphone, and an accelerometer, so that images on screens are always displayed upright. The touchscreen display uses the recognition of finger or stylus gestures to replace the mouse, trackpad and keyboard used in laptops. - Buffy the Vampire Slayer : The Quest for Oz is a 2004 video game based on the Buffy the Vampire Slayer franchise . It is the fifth video game and first mobile game in the franchise . - An electronic game is a game that employs electronics to create an interactive system with which a player can play. Video game is the most common form today, and for this reason the terms are often mistakenly used synonymously. Other common forms of electronic game include such products as handheld electronic games, standalone systems (e.g. pinball, slot machines, or electro-mechanical arcade games), and exclusively non-visual products (e.g. audio games). - An electronic calculator is a small, portable electronic device used to perform operations ranging from basic arithmetic to complex mathematics. After reading the paragraphs above, we are interested in knowing the entity with which 'buffy the vampire slayer: the quest for oz' exhibits the relationship of 'platform'. Find the answer from the choices below. Choices: - basic - dvd - handheld - internet - mobile game - mobile phone - personal computer - tablet computer
The answer is:
mobile phone