Question: News UK is an owned subsidiary of which American mass media conglomerate?
Context: The Walt Disney Company, commonly known as Disney, is an American diversified multinational mass media and entertainment conglomerate, headquartered at the Walt Disney Studios in Burbank, California.  It is the world's second largest media conglomerate in terms of revenue, after Comcast.  Disney was founded on October 16, 1923 – by brothers Walt Disney and Roy O. Disney – as the Disney Brothers Cartoon Studio, and established itself as a leader in the American animation industry before diversifying into live-action film production, television, and theme parks.  The company also operated under the names The Walt Disney Studio and then Walt Disney Productions.  Taking on its current name in 1986, it expanded its existing operations and also started divisions focused upon theater, radio, music, publishing, and online media. Eliseo Roberto Colón Zayas (Puerto Rico, 1956) is a Puerto Rican communication, semiotician, cultural theorist and mass media researcher who specializes in Latin American Mass Media Studies, Semiotics, Cultural Studies, Mass Media Culture, Discourse Analysis, Aesthetics and Advertising Discourse and has written extensively on melodrama and mass media narratives in Latin America, virtual interface mediated narratives, neoliberalism and mass media narratives, advertising discourse and on Puerto Rican mass media topics.  He is a Professor at the University of Puerto Rico’s School of Communication, which he chaired from1999 through 2013. News Corporation (officially referred to as News Corp; trading as News Corp) is an American multinational mass media company, formed as a spin-off of the former News Corporation (as founded by Rupert Murdoch in 1979) focusing on newspapers and publishing.  It is one of two companies which succeeded the former News Corporation, alongside 21st Century Fox—which consists of the old News Corporation's broadcasting and media properties, such as Fox Entertainment Group.  The spin out was structured so that 21st Century Fox would be the legal successor and continuation of the old News Corporation, with the new News Corp being an entirely new company formed by a stock split. A media conglomerate, media group, or media institution is a company that owns numerous companies involved in mass media enterprises, such as television, radio, publishing, motion pictures, theme parks, or the Internet.  According to the magazine "Nation", "Media conglomerates strive for policies that facilitate their control of the markets around the world." National Television of Kampuchea (Khmer: ទូរទស្សន៍ជាតិកម្ពុជា Latin:Tourotossaa Cheate Kampouchea) was formed by National Radio of Kampuchea and National Television of Kampuchea and is a national public broadcasting state media government mass media conglomerate of radio and television services in the Kingdom of Cambodia.  It is owned and operated by Government.  It owns and operates about 12 radio stations and one television channel (terrestrial free-to-air) from Phnom Penh.  Local Network RNK and TVK has 10 radio stations and 12 television stations. News Corp UK & Ireland Limited (trading as News UK, formerly News International and NI Group), is a British-based American-owned newspaper publisher, and a wholly owned subsidiary of the American mass media conglomerate News Corp.  It is the current publisher of "The Times", "The Sunday Times" and "The Sun" newspapers and its former publications include the "Today", "News of the World" and "The London Paper" newspapers.  Until June 2002, it was called News International plc.  On 31 May 2011 the company name was changed from News International Limited to NI Group Limited, and on 26 June 2013 to News UK. Time Warner, Inc. is an American multinational mass media and entertainment conglomerate headquartered in New York City.  It is currently the world's third largest entertainment company in terms of revenue, after Comcast and The Walt Disney Company.  It was also once the world's largest media conglomerate.  Time Warner was first founded in 1990, with the merger of Time Inc. and Warner Communications.  The current company consists largely of the assets of the former Warner Communications (as well as HBO, a Time Inc. subsidiary prior to the merger), and the assets of Turner Broadcasting (which was acquired by the company in 1996). iHeartMedia, Inc. (formerly CC Media Holdings, Inc.) is an American mass media corporation headquartered in San Antonio, Texas.  It is the holding company of iHeartCommunications, Inc. (formerly Clear Channel Communications, Inc.), a company founded by Lowry Mays and B. J. "Red" McCombs in 1972, and later taken private by Bain Capital, LLC and Thomas H. Lee Partners through a leveraged buyout in 2008.  As a result of this buyout, Clear Channel Communications, Inc. began to operate as a wholly owned subsidiary of CC Media Holdings, Inc.  On September 16, 2014, CC Media Holdings, Inc. was rebranded iHeartMedia, Inc.; and Clear Channel Communications, Inc., became iHeartCommunications, Inc. The term mass media refers to any means or technology used to communicate a message to large groups of people.  Popular forms of mass media include television, the Internet, and newspapers.  Mass media are specifically intended to reach larger audiences.  The term is often divided into two broad categories: that of electronic mass media and that of print mass media.  Electronic mass media require their audiences to interact with electronics in order to receive the message.  They attempt to recreate or represent a message through moving pictures and/or sound.  Four common examples of electronic media used in Canadian society are television, radio, films, and the Internet.  Print mass media, on the other hand, refers to any media that is distributed to audiences in a printed form, on paper.  Examples of this include newspapers, printed books, and magazines.  The mass media model in Canada is different from the mass media model of the United States as well as the rest of the world.  According to John A. Irving, mass media functions differently in Canadian society because of a lack of collective identity; this is in reference to Canada's languages (and related cultures) as well as its proximity to the United States.  Irving states that such cultural dualism means that only some of the population responds to the mass media in English, while the other portion remain uninfluenced by English-based media.  In terms of the proximity to the United States, he explains that "most of the difficulties that threaten the mass media in Canada are the direct outcome of American economic and cultural imperialism."  Because of the United States' overwhelming influence on Canadian mass media, Canada has not been able to form its own identity in the media.  These two factors have slowed down the process of the creation of a Canadian community.  Mass media help in forming a community through communication.  When a large group of people is in communication with one another through media, an identifiable culture is formed.  Individuals in dialectic experience a sense of membership and collective identity. Twenty-First Century Fox Inc. (stylized as 21st Century Fox, simply known as Fox, and also called 21CF) is an American multinational mass media corporation based in Midtown Manhattan, New York City.  It was one of two companies formed from the 2013 spin-off of the publishing assets of News Corporation, as founded by Rupert Murdoch in 1979.  21st Century Fox is the legal successor to News Corporation dealing primarily in the film and television industries and is currently the world's fourth largest media conglomerate (after Comcast, The Walt Disney Company and Time Warner).  The other company, the "new" News Corporation, holds Murdoch's print interests (both owned by him and his family via a family trust with 39 percent controlling interest in each).
Answer: News Corp